{"id":1663,"date":"2021-08-02T06:33:46","date_gmt":"2021-08-02T01:03:46","guid":{"rendered":"https:\/\/www.systweak.com\/blogs\/?p=1663"},"modified":"2025-12-26T12:22:45","modified_gmt":"2025-12-26T06:52:45","slug":"how-to-fix-pci-serial-port-driver-issues-on-windows","status":"publish","type":"post","link":"https:\/\/www.systweak.com\/blogs\/how-to-fix-pci-serial-port-driver-issues-on-windows\/","title":{"rendered":"How to Fix PCI Serial Port Driver Issues on Windows"},"content":{"rendered":"<p style=\"text-align: justify;\">Do you see a yellow mark next to PCI Serial Port when you open Device Manager?<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-28715 size-full\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/PCI-serial-port.webp\" alt=\"PCI-serial-port\" width=\"308\" height=\"227\" sizes=\"(max-width: 308px) 100vw, 308px\" \/><\/p>\n<p style=\"text-align: justify;\">Yes, you\u2019ve landed on the right page. This post will discuss how to fix Peripheral Component Interconnect (PCI) serial port driver issues. Peripheral Component Interconnect is used to connect monitors and printers. When it goes missing, you might face problems reading output devices. Since it is an industry-standard bus for attaching peripheral devices to a computer, you need to update them.<\/p>\n<p style=\"text-align: justify;\">Here we will discuss how to update PCI and download a PCI serial port driver. You can have the latest and updated drivers using either method.<\/p>\n<h3 style=\"text-align: justify;\">Why Do The PCI Serial Port Drivers Issue Occur On Windows?<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In order to troubleshoot any issue within the computer, you must first understand the reason why the error occurred in the first place. There are many possible reasons as to why the PCI Serial Port Drivers issue occurs on Windows. We have listed the most common ones.<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The chipset drivers are missing, outdated, or corrupted.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The PCI Serial Port belongs to the Intel Management Engine Interface (IMEI). If this driver is not installed, then you might see a yellow warning icon appear in Device Manager.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Windows Update\/Upgrade can remove specific drivers and replace them with generic ones.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Windows may miss OEM-specific PCI components, including the serial port controller.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">BIOS updates or resets can cause the PCI serial port driver to malfunction.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><i><span style=\"font-weight: 400;\">In simpler words, Windows knows the port exists, but it just doesn\u2019t know who it belongs to.<\/span><\/i><\/p>\n<h2 style=\"text-align: justify;\">Best Ways to Fix PCI Serial Port Drivers Issues on Windows 10\/11<\/h2>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-28729 size-full\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/update-pci-serial-port-driver.webp\" alt=\"update pci serial port driver\" width=\"437\" height=\"321\" sizes=\"(max-width: 437px) 100vw, 437px\" \/><\/p>\n<h3 style=\"text-align: justify;\">Method 1: Manually Updating the PCI Serial Port driver<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This method requires you to know the device and operating system details. Also, an element of risk is involved with this method. Since you will be doing everything independently, your system might be unbootable if you install an incorrect driver. Therefore, double-check each detail before initiating a PCI Serial Port driver download from the website.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>1.<\/strong> Right-click the start menu &gt; select Device Manager<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-28731 size-full\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/device-manager.webp\" alt=\"device manager\" width=\"280\" height=\"317\" sizes=\"(max-width: 280px) 100vw, 280px\" \/><br \/>\n<strong>2.<\/strong> Look for Other devices.<br \/>\n<strong>3.<\/strong> Double-click to expand it &gt; right-click <strong>PCI Serial Port\u00a0<\/strong>&gt;<strong> Update driver.<\/strong><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-28733 size-full\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/update-driver.webp\" alt=\"update driver\" width=\"229\" height=\"128\" \/><\/p>\n<p style=\"text-align: justify;\"><strong><br \/>\n4.<\/strong> This will open a new window here. Click <strong>Search automatically for drivers<\/strong>.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-28743 size-full\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/search-automatically.webp\" alt=\"search automatically\" width=\"613\" height=\"374\" sizes=\"(max-width: 613px) 100vw, 613px\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>5.<\/strong> Wait for Windows to detect if any updates are available.<br \/>\n<strong>6.<\/strong> If any are available, they will be downloaded automatically.<br \/>\n<strong>7.<\/strong> Restart the PC to apply changes and see if the PCI Serial Port issue is resolved.<\/p>\n<p style=\"text-align: justify;\"><div class=\"color-box\">\n<div class=\"shadow\">\n<div class=\"info-tab note-icon\" style=\"background:#47ADE0\"><i><\/i><\/div>\n<div class=\"note-box\" style=\"background:#d5e9f6\">\n<p> <strong> Note : <\/strong>There might be instances when Microsoft fails to show driver updates. In such cases, you can check for the driver update by visiting the official website or can try using a driver updating utility Advanced Driver Updater.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p>\n<h3 style=\"text-align: justify;\">Method 2: Auto-Download &amp; Update of PCI Serial Port driver &#8211; Recommended<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Developed by Systweak, Advanced Driver Updater is one of the <\/span><a href=\"https:\/\/www.systweak.com\/blogs\/advanced-driver-updater-review\/\" target=\"_blank\" rel=\"noopener\"><b>best driver updating tools<\/b><\/a><span style=\"font-weight: 400;\">. This utility automatically recognizes your system and finds the correct driver for your <\/span><span style=\"font-weight: 400;\">PC<\/span><span style=\"font-weight: 400;\">. You don\u2019t need to know the <\/span><span style=\"font-weight: 400;\">system or<\/span><span style=\"font-weight: 400;\"> device details to use it. Also, you don\u2019t have to worry about installing incorrect driver updates.<\/span><\/p>\n<p style=\"text-align: justify;\">Moreover, you can update drivers, and schedule driver updates with a few clicks. Advanced Driver Updater offers both Free and Pro versions. Using the free version, you have to update one driver simultaneously, while the registered version allows updating all outdated drivers simultaneously.<\/p>\n<p style=\"text-align: justify;\">To use Advanced Driver Updater, follow these steps:<\/p>\n<p style=\"text-align: justify;\"><strong>1.<\/strong> Download and install Advanced Driver Updater<\/p>\n<div class=\"download_buttons_section\"><p style=\"text-align: justify;display:none;\" class=\"downloadnow-btn-show os-windows\" data-eventsource=\"DownloadNow_post_button\"><a data-param=\"systweakblog,wp_json\/wp\/v2\/posts\/1663,pos-1,135\" data-operation=\"iframe\" class=\"ds-download-link \" rel=\"nofollow\" href=\"https:\/\/www.systweak.com\/blogs\/download-product\/adu\/w\/1663\/1\" onclick=\"gtag('event', 'ProductDownloadSysBlog', { 'event_label' :'how-to-fix-pci-serial-port-driver-issues-on-windows', 'event_category':'windows-1' });\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full\" src=\"https:\/\/bg.systweak.com\/blogs\/wp-content\/plugins\/download-button-shortcode-new\/images\/window_btn.png\" alt=\"download\" width=\"250\" height=\"65\"><\/a><\/p><\/div>\n<p style=\"text-align: justify;\"><strong>2.<\/strong> Run the driver updating tool<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-30379\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2024\/07\/Advanced-Driver-Updater_1.webp\" alt=\"Advanced-Driver-Updater_1\" width=\"717\" height=\"551\" sizes=\"(max-width: 717px) 100vw, 717px\" \/><strong><br \/>\n3.<\/strong> Click Start Scan now to scan the system for outdated drivers<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-31175\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/09\/scanning-using-advanced-driver-updater.webp\" alt=\"canning-using-advanced-driver-updater\" width=\"719\" height=\"554\" sizes=\"(max-width: 719px) 100vw, 719px\" \/><br \/>\n<strong>4.<\/strong> Wait for the scan to finish<br \/>\n<strong>5.<\/strong> When done, review the scan results. If using the Free version, click Update Driver next to PCI driver. However, if you use a paid version, you can click Update All to <a href=\"https:\/\/www.systweak.com\/blogs\/fix-delete-key-not-working-windows\/\" target=\"_blank\" rel=\"noopener\">update all outdated drivers<\/a>.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-30380\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2024\/07\/Advanced-Driver-Updater_update-driver.webp\" alt=\"Advanced-Driver-Updater_update-driver\" width=\"740\" height=\"569\" sizes=\"(max-width: 740px) 100vw, 740px\" \/><br \/>\n<strong>6.<\/strong> Restart the PC to apply changes<\/p>\n<p style=\"text-align: justify;\">Now check the system; the PCI driver should now be working.<\/p>\n<h3 style=\"text-align: justify;\">Method 3: Download Drivers From Manufacturer\u2019s Website<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The PCI Serial Port is usually part of your system\u2019s chipset. You can download the entire chipset driver from the OEM website instead of a PCI Serial Port driver download. Here are the steps.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">1. Press Win + X \u2192 Device Manager<br \/>\n<\/span><span style=\"font-weight: 400;\">2. Expand Other devices<br \/>\n<\/span><span style=\"font-weight: 400;\">3. Note devices like PCI Serial Port or Unknown device<br \/>\n<\/span><span style=\"font-weight: 400;\">4. Visit your PC or motherboard manufacturer\u2019s website.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32276\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/identify-your-laptop.webp\" alt=\"identify your laptop\" width=\"694\" height=\"406\" sizes=\"(max-width: 694px) 100vw, 694px\" \/><br \/>\n<\/span><span style=\"font-weight: 400;\">5. Enter the model number of the PC, and you will find all the available resources for your computer.<br \/>\n<\/span><span style=\"font-weight: 400;\">6. Locate the Chipset driver and click on the Download button.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32278\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/locate-chipset-driver.webp\" alt=\"locate chipset driver\" width=\"810\" height=\"277\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><br \/>\n<span style=\"font-weight: 400;\">7. Download and install the Chipset driver<br \/>\n<\/span><span style=\"font-weight: 400;\">8. Restart Windows<\/span><\/p>\n<h3 style=\"text-align: justify;\">Method 4: Install Intel Management Engine Interface (IMEI)<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">On many Intel systems, the PCI Serial Port is controlled by the Intel Management Engine. Here are the steps to install IMEI.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">1. Go to your <\/span><a href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/download\/682431\/intel-management-engine-drivers-for-windows-10-and-windows-11.html?utm_source=systweakblog\" target=\"_blank\" rel=\"noopener nofollow\"><span style=\"font-weight: 400;\">system manufacturer\u2019s driver page<\/span><\/a><span style=\"font-weight: 400;\">.<br \/>\n<\/span><span style=\"font-weight: 400;\">2. Download Intel Management Engine Interface.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32277\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/08\/Install-driver.webp\" alt=\"Install driver\" width=\"729\" height=\"350\" sizes=\"(max-width: 729px) 100vw, 729px\" \/><br \/>\n<span style=\"font-weight: 400;\">3. Install the drivers by double-clicking the downloaded file and following the onscreen instructions.<br \/>\n<\/span><span style=\"font-weight: 400;\">4. Reboot the PC.<\/span><\/p>\n<h3 style=\"text-align: justify;\">Method 5: Update Windows<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Windows provides regular updates to its users, which may contain security patches, bug fixes, new features, driver updates, and more. Experts suggest that updating Windows is very necessary for <a href=\"https:\/\/www.systweak.com\/blogs\/why-should-you-optimize-your-pc-and-how\/\" target=\"_blank\" rel=\"noopener\">optimal running of the PC<\/a>. Here is what you need to do to facilitate a PCI Serial Port driver download on your PC.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">1. Press Win + I to open the Settings box.<br \/>\n<\/span><span style=\"font-weight: 400;\">2. Click on the Windows Update tab in the left panel.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-30955\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/08\/windows-update-tab.webp\" alt=\"windows update tab\" width=\"295\" height=\"151\" \/><br \/>\n<span style=\"font-weight: 400;\">3. Now, on the right side, click on the <\/span><b>Check For Updates<\/b><span style=\"font-weight: 400;\"> button.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-31307\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/09\/windows-update-1.webp\" alt=\"windows update\" width=\"751\" height=\"209\" sizes=\"(max-width: 751px) 100vw, 751px\" \/><br \/>\n<span style=\"font-weight: 400;\">4. Download and Install all the updates available.<br \/>\n<\/span><span style=\"font-weight: 400;\">5. Next, click on Advanced Options in the right section of the Settings box.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-30937\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/08\/advanced-option.webp\" alt=\"advanced option\" width=\"767\" height=\"59\" sizes=\"(max-width: 767px) 100vw, 767px\" \/><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">6. Click on Optional Updates.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-31308\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/09\/Advanced-Options-1-2.webp\" alt=\"Advanced Options\" width=\"769\" height=\"93\" sizes=\"(max-width: 769px) 100vw, 769px\" \/><br \/>\n<\/span><span style=\"font-weight: 400;\">7. Locate Driver Updates and other Misc updates. Select all of them and click on the Download &amp; Install button.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-31381\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/09\/Advanced-Options.webp\" alt=\"Advanced Options\" width=\"774\" height=\"379\" sizes=\"(max-width: 774px) 100vw, 774px\" \/><br \/>\n<\/span><span style=\"font-weight: 400;\">8. Wait for all the updates to complete and restart your PC.<\/span><\/p>\n<h3 style=\"text-align: justify;\">Method 6: Activate The Hardware And Devices Troubleshooter.<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The next step is a simple one where you have to run an in-built troubleshooter to identify and fix hardware issues within your PC. Here are the steps you need to follow &#8211;\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">1. Press Win + R to open the RUN box.<br \/>\n<\/span><span style=\"font-weight: 400;\">2. Copy and paste the following command and press the Enter key.<\/span><\/p>\n<p style=\"text-align: justify;\"><b>msdt.exe -id DeviceDiagnostic<\/b><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-23870\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2024\/08\/msdt.exe-id-DeviceDiagnostic-command.webp\" alt=\"msdt.exe -id DeviceDiagnostic command\" width=\"442\" height=\"218\" sizes=\"(max-width: 442px) 100vw, 442px\" \/><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">3. A new box will open here. Click the Advanced link.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-24030\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2024\/08\/Hardware-and-Devices-Troubleshooter-Advanced-Option.webp\" alt=\"Hardware and Devices Troubleshooter - Advanced Option\" width=\"678\" height=\"526\" sizes=\"(max-width: 678px) 100vw, 678px\" \/><br \/>\n<span style=\"font-weight: 400;\">4. Ensure that the \u201cApply Repairs Automatically\u201d box has been checked.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32128\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2025\/12\/Hardware-and-Devices-Troubleshooter-toolbox.webp\" alt=\"Hardware and Devices Troubleshooter toolbox\" width=\"666\" height=\"508\" sizes=\"(max-width: 666px) 100vw, 666px\" \/><br \/>\n<\/span><span style=\"font-weight: 400;\">5. Click on the <\/span><b>Next<\/b><span style=\"font-weight: 400;\"> button and follow the onscreen instructions.<br \/>\n<\/span><span style=\"font-weight: 400;\">6. Restart your PC after the scan and repair process is complete.<\/span><\/p>\n<h3 style=\"text-align: justify;\">Method 7: Check BIOS Settings<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The final option to fix the PCI Serial Port issues is to check if the PCI setting has been disabled in the BIOS. You can enter the BIOS and enable it by following these steps.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">1. Reboot your PC and enter the BIOS environment by tapping on the Del, F10, F12, F2, etc. The key is specific to your PC manufacturer.<br \/>\n<\/span><span style=\"font-weight: 400;\">2. Locate the Advanced or Peripheral Devices option.<br \/>\n<\/span><span style=\"font-weight: 400;\">3. You need to search for settings that are labelled as Serial Port, COM Port, or PCI Configuration.<br \/>\n<\/span><span style=\"font-weight: 400;\">4. Enable these settings, save changes and exit BIOS to reboot your PC.<\/span><\/p>\n<h3 style=\"text-align: justify;\">Editor Tips On PCI Serial Port Driver Issues<\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Always create a system restore point before troubleshooting and making changes on your PC.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Do not perform the steps under any method if you are unsure or unclear about them. Consult a PC technician instead.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Do not download drivers from third-party websites or torrents ad they may contain malware. Use the manufacturer\u2019s website for the PCI Serial Port driver downloads on your PC.<\/span><\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\">PCI Serial Port Driver Issues Fixed on Windows 10 PC<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Though the PCI driver problem might look minor, it does create a huge mess. When PCI serial port driver issues occur, everything seems to halt. Either you are unable to connect the hardware or access the connected one. In such cases, the best way to update <\/span><a href=\"https:\/\/www.systweak.com\/blogs\/download-and-update-pci-device-drivers-for-windows\/\"><b>PCI serial port<\/b><\/a><span style=\"font-weight: 400;\"> driver in Windows 10 is to use Device Manager or Advanced Driver Updater.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">If you are looking for our recommendation, we suggest using Advanced Driver Updater, as there is no risk involved, and the complete process is automated. Moreover, it comes with a 60-day money-back guarantee and is backed by a trained technical support team.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">We hope you like the information we shared and were able to update PCI serial port driver Windows 10.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">For any product-related queries, you can contact support@systweak.com.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><strong>Frequently Asked Questions<\/strong><\/h3>\n<p style=\"text-align: justify;\"><strong>1. Why do we need a PCI Serial Port Driver on Windows 11\/10 PC?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>Ans.<\/strong> The PCI serial port driver helps bridge the gap between the Windows OS and the serial port hardware. Any device that is connected to this port will only function properly if the appropriate PCI driver is installed.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>2. Why does the PCI Serial Port stop working?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>Ans.<\/strong> One of the main reasons for the PCI serial port to cease working is due to incompatible, corrupted, or outdated drivers. Other reasons could include misconfigured BIOS settings, Windows Updates replacing drivers or hardware faults.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>3. Is it possible to disable the PCI serial port in the BIOS?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>Ans.<\/strong> You can enable and disable PCI serial ports from the BIOS settings. But if you disable the PCI port, then you will not be able to connect any hardware via that port until it is enabled again.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>4. Why is a yellow exclamation mark next to the PCI serial port?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>Ans.<\/strong> The yellow exclamation mark indicates that the driver is outdated, corrupted, missing or incompatible with the hardware installed on the PC.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>Recommended-\u00a0<\/strong><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/www.systweak.com\/blogs\/how-to-fix-pci-modem-drivers-problems\/\" target=\"_blank\" rel=\"bookmark noopener\">How to Fix PCI Modem Drivers Problems<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/realtek-pcie-gbe-family-controller-driver\/\" target=\"_blank\" rel=\"bookmark noopener\">How to Download &amp; Update Realtek PCIe GbE Family Controller Driver<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Do you see a yellow mark next to PCI Serial Port when you open Device Manager? Yes, you\u2019ve landed on the right page. This post will discuss how to fix Peripheral Component Interconnect (PCI) serial port driver issues. Peripheral Component Interconnect is used to connect monitors and printers. When it goes missing, you might face&hellip; <a class=\"more-link\" href=\"https:\/\/www.systweak.com\/blogs\/how-to-fix-pci-serial-port-driver-issues-on-windows\/\">Continue reading <span class=\"screen-reader-text\">How to Fix PCI Serial Port Driver Issues on Windows<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":28713,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,13],"tags":[40],"class_list":["post-1663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-driver-updater","category-how-to","tag-network-driver","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3-RC2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Fix PCI Serial Port Driver Issues on Windows PC<\/title>\n<meta name=\"description\" content=\"Learn how to fix windows that could not install your PCI Serial Port driver. 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