{"id":10937,"date":"2022-11-27T17:16:29","date_gmt":"2022-11-27T11:46:29","guid":{"rendered":"https:\/\/www.systweak.com\/blogs\/?p=10937"},"modified":"2023-04-28T15:05:16","modified_gmt":"2023-04-28T09:35:16","slug":"fixed-prolific-usb-to-serial-driver-not-working-on-windows","status":"publish","type":"post","link":"https:\/\/www.systweak.com\/blogs\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\/","title":{"rendered":"Fixed- Prolific USB to Serial Driver Not Working on Windows 10\/11"},"content":{"rendered":"<p style=\"text-align: justify;\">Serial ports have been around for decades. These are the oldest peripheral connectors for PCs that connect old modems, printers, and other devices. Since the revolution of computing devices, these have been replaced by USBs. However, some of these devices connect to modern PC require a serial port on your computer. This is when you can opt for Prolific USB to serial driver connectors.<\/p>\n<h3 style=\"text-align: justify;\">What are Prolific USB Serial Connectors?<\/h3>\n<p style=\"text-align: justify;\">The Prolific USB to serial connectors helps convert USB to Serial\/UART\/RS232, allowing you to easily connect any legacy peripherals to your modern PC.<\/p>\n<p style=\"text-align: justify;\">However, if you are using a dedicated USB to Serial converter by Prolific and it has stopped working, this blog will surely help.<\/p>\n<h3 style=\"text-align: justify;\">Reason for Prolific USB connector not working.<\/h3>\n<p style=\"text-align: justify;\">It has been observed that the issue often prevails due to the driver issues on your PC.<\/p>\n<p style=\"text-align: justify;\">This blog discusses fixing Prolific USB to Serial drivers not working on your Windows 10\/11 PC.<\/p>\n<p style=\"text-align: justify;\">Read the post till the end!<\/p>\n<h2 style=\"text-align: justify;\">Best Ways to Fix Prolific USB to Serial Driver Not Working on Windows<\/h2>\n<p style=\"text-align: justify;\">To resolve any issue on your PC, you need to understand three things &#8211;<\/p>\n<ul style=\"text-align: justify;\">\n<li>What is causing the error?<\/li>\n<li>Why is it causing the error?<\/li>\n<li>How to fix the error?<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">So, let\u2019s break down the Prolific USB to Serial issue into these three categories. First, let\u2019s address the What &#8211;<\/p>\n<h3 style=\"text-align: justify;\">What is Causing Prolific USB to Serial Connectors to Stop Working?<\/h3>\n<p style=\"text-align: justify;\">The reason behind the error is clear: the drivers have malfunctioned on the PC.<\/p>\n<p style=\"text-align: justify;\">Drivers are key components that allow a computer to communicate with the devices connected to it. When they are missing, outdated, or corrupt, everything you connect, be it an internal device like GPU or an external device like a keyboard, gives certain issues.<\/p>\n<h3 style=\"text-align: justify;\">Why Has Prolific USB to Serial Driver Stopped Working?<\/h3>\n<p style=\"text-align: justify;\">When you have an issue related to drivers for any device, the reason behind the error is generally one of the following &#8211;<\/p>\n<ul style=\"text-align: justify;\">\n<li>Device drivers not installed properly<\/li>\n<li>Outdated USB to Serial drivers on Windows<\/li>\n<li>Corrupt Driver files on Windows<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">These three issues may cause the Prolific USB to the serial connector to stop working on Windows 10\/11.<\/p>\n<h3 style=\"text-align: justify;\">How to Fix Prolific USB to Serial Driver Issue on Your Windows PC?<\/h3>\n<p style=\"text-align: justify;\">Now that you know the what and why breaking down the how part does not seem that difficult. To fix the issue related to drivers, you need a solution. Well, there are two ways you can approach the fix &#8211;<\/p>\n<ul style=\"text-align: justify;\">\n<li>Install the latest version of drivers to support the device.<\/li>\n<li>Roll back to the last stable version of the USB to Serial drivers.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Let\u2019s discuss these two fixes in more detailed and try to understand how you can fix the Prolific USB to serial connector driver issues on your PC.<\/p>\n<h3 style=\"text-align: justify;\">2 Ways to Fix Prolific USB to Serial Drivers Not Working on Windows<\/h3>\n<h3 style=\"text-align: justify;\">Method 1 &#8211; Install the Latest Updated for Prolific USB to Serial Drivers<\/h3>\n<p style=\"text-align: justify;\">The first fix is to find and install the latest updates for your USB to serial connectors. There are multiple ways to do so.<\/p>\n<p style=\"text-align: justify;\">The manual method is to log on to<a href=\"https:\/\/www.prolific.com.tw\/US\/ShowProduct.aspx?pcid=41&amp;showlevel=0041-0041\" target=\"_blank\" rel=\"noopener nofollow\"> the Prolific official website <\/a>and look for drivers for your device.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10945 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/drivers-for-os.jpg\" alt=\"drivers for os\" width=\"552\" height=\"122\" sizes=\"(max-width: 552px) 100vw, 552px\" \/> Once you have downloaded the driver file per your devices, you must individually install them.<\/p>\n<p style=\"text-align: justify;\">However, knowing the latest version, you might need help with this approach. Although the devices that Prolific offers have dedicated codes through which you can identify them. But, if you are unaware of these codes, you might end up downloading the incorrect driver, causing more trouble.<\/p>\n<p style=\"text-align: justify;\">To eradicate such issues, there is a dedicated automated procedure that you can opt for, <a href=\"https:\/\/www.systweak.com\/blogs\/advanced-driver-updater-review\/\" target=\"_blank\" rel=\"noopener\">Advanced Driver Updater<\/a>. It is a dedicated tool that allows you to find the best updates for your installed drivers and update them automatically. To give you a quick overview, here\u2019s how the tool works &#8211;<\/p>\n<ul>\n<li>Run the application on your Windows PC. (Install it using the button given below)<\/li>\n<\/ul>\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\/10937,pos-2,135\" data-operation=\"iframe\" class=\"ds-download-link \" rel=\"nofollow\" href=\"https:\/\/www.systweak.com\/blogs\/download-product\/adu\/w\/10937\/2\" onclick=\"gtag('event', 'ProductDownloadSysBlog', { 'event_label' :'fixed-prolific-usb-to-serial-driver-not-working-on-windows', 'event_category':'windows-2' });\"><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><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4869\" title=\"\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/04\/adu-scan1.jpg\" alt=\"advanced driver updater\" width=\"621\" height=\"479\" sizes=\"(max-width: 621px) 100vw, 621px\" \/><\/p>\n<ul>\n<li>Start a Scan for all the outdated drivers.3. Wait for the scan to finish.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4867\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/04\/adu-scan-start1.jpg\" alt=\"advanced driver updater scan process\" width=\"634\" height=\"488\" sizes=\"(max-width: 634px) 100vw, 634px\" \/><\/p>\n<ul>\n<li>Once you have the results, update the drivers you want by clicking Update driver. Or you can <a href=\"https:\/\/www.systweak.com\/blogs\/how-to-update-outdated-drivers-in-windows\/\" target=\"_blank\" rel=\"noopener\">update all the outdated drivers<\/a> with a single click by using the Update All option.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9324\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/09\/update-all-outdated-driver.jpg\" alt=\"update all outdated driver\" width=\"621\" height=\"477\" sizes=\"(max-width: 621px) 100vw, 621px\" \/><\/p>\n<ul>\n<li>Once you update the drivers, restart the PC, and your device should work properly. The update the tool fetches are straight from a trusted source. So, you do not have to worry about malicious attacks on your PC.<\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\">Method 2 &#8211; Install the Last Stable Version of the Driver<\/h3>\n<p>Now, if updating the drivers does not fix the issue, you need to understand that it may be because the driver might have some issue. In such a case, you can either stop using the device as it is no longer supported or install the previous version of the existing drivers to keep the device alive.<\/p>\n<p>Here is a step-by-step guide on how to do it manually, &#8211;<\/p>\n<ul>\n<li>Open Device manager on your PC. You can search for the Device Manager in the start menu or press Windows + X to find it in the Quick Access menu.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10944 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/device-manager-4.jpg\" alt=\"device manager\" width=\"648\" height=\"344\" sizes=\"(max-width: 648px) 100vw, 648px\" \/><\/p>\n<ul>\n<li>You will find your Prolific USB to Serial connector in the Ports COM &amp; PT category. Expand it to find the device that has an error.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10946 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/network-adeptor-.jpg\" alt=\"network adeptor\" width=\"354\" height=\"126\" sizes=\"(max-width: 354px) 100vw, 354px\" \/><\/p>\n<ul>\n<li>Right-click on it to select find the Update driver option.<\/li>\n<li>Select the second option from the pop-up window.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10948 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/search-driver-automatically-2.jpg\" alt=\"search driver automatically\" width=\"534\" height=\"257\" sizes=\"(max-width: 534px) 100vw, 534px\" \/><\/p>\n<ul>\n<li>Select <strong>Let me pick from a list of available drivers on my computer<\/strong>.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10943 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/browse-drivers.jpg\" alt=\"browse drivers\" width=\"555\" height=\"300\" sizes=\"(max-width: 555px) 100vw, 555px\" \/><\/p>\n<ul>\n<li>Navigate to the downloaded older versions of the drivers. Select the file and click Next.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10942 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/available-hardware.jpg\" alt=\"available hardware\" width=\"481\" height=\"200\" sizes=\"(max-width: 481px) 100vw, 481px\" \/><\/p>\n<ul>\n<li>This will install the selected older driver.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Once the process ends, you will have the older driver running.<\/p>\n<ul>\n<li>Restart the PC for effective changes.\u00a0 This should work.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">The problem with rolling back drivers is that it needs to be done correctly, otherwise it may corrupt your device. This is another area where Advanced Driver Update can help. If you are an active user of Advanced Driver Updater, you can create a stable backup of your drivers that you can restore anytime you feel some drivers are causing the issue. It is easy to do and safe.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-10947 aligncenter\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/11\/restore-drivers.jpg\" alt=\"restore drivers\" width=\"611\" height=\"471\" sizes=\"(max-width: 611px) 100vw, 611px\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>Conclusion<\/strong><\/p>\n<p style=\"text-align: justify;\">All in all, it will not be wrong to say the Advanced Driver Updater can be the ultimate solution to Prolific USB for Serial Drivers not Working on Windows. The devices that use Serial connections are extremely helpful. Thus, they cannot be eradicated. You can only move to USB-based devices partially, as car OBDs and ECUs still use a serial connection.<\/p>\n<p style=\"text-align: justify;\">I hope this blog gives you proper insights on making things work when the Prolific USB to serial drivers stop working. Good luck!<\/p>\n<p><strong>Recommended-\u00a0<\/strong><\/p>\n<p><a href=\"https:\/\/www.systweak.com\/blogs\/how-to-download-google-usb-driver-on-windows\/\" target=\"_blank\" rel=\"bookmark noopener\">How To Download\/Install Google USB Driver on Windows<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/organize-photos-on-an-external-usb-drive\/\" target=\"_blank\" rel=\"bookmark noopener\">How to Organize Photos on An External USB Drive<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/usb-tethering-not-working-in-windows\/\" target=\"_blank\" rel=\"bookmark noopener\">How To Fix USB Tethering Not Working in Windows PC<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/update-qualcomm-hs-usb-qdloader-9008-driver\/\" target=\"_blank\" rel=\"bookmark noopener\">How Do I Update Qualcomm HS-USB QDLoader 9008 Driver<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/usb-drive-not-showing-up\/\" target=\"_blank\" rel=\"bookmark noopener\">Fixed \u2013 USB Drive Not Showing Up \u2013 Windows 11\/10<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Serial ports have been around for decades. These are the oldest peripheral connectors for PCs that connect old modems, printers, and other devices. Since the revolution of computing devices, these have been replaced by USBs. However, some of these devices connect to modern PC require a serial port on your computer. This is when you&hellip; <a class=\"more-link\" href=\"https:\/\/www.systweak.com\/blogs\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\/\">Continue reading <span class=\"screen-reader-text\">Fixed- Prolific USB to Serial Driver Not Working on Windows 10\/11<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":10938,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,13,86],"tags":[],"class_list":["post-10937","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-driver-updater","category-how-to","category-usb-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>Fixed- Prolific USB to Serial Driver Not Working on Windows 10\/11<\/title>\n<meta name=\"description\" content=\"Is prolific USB to Serial driver causing the issue in connecting devices? This blog has all the solutions you need to fix driver errors! Read for more.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.systweak.com\/blogs\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fixed- Prolific USB to Serial Driver Not Working on Windows 10\/11\" \/>\n<meta property=\"og:description\" content=\"Is prolific USB to Serial driver causing the issue in connecting devices? This blog has all the solutions you need to fix driver errors! Read for more.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.systweak.com\/blogs\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\/\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/systweak\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-27T11:46:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-28T09:35:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/bg.systweak.com\/blogs\/wp-content\/uploads\/2022\/11\/Prolific-USB-to-Serial-Driver-Windows-10-Not-Working-min.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"750\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Dishank Sharma\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@sysblogmanager\" \/>\n<meta name=\"twitter:site\" content=\"@systweak\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dishank Sharma\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/\"},\"author\":{\"name\":\"Dishank Sharma\",\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/#\\\/schema\\\/person\\\/d372a76377cbcf1ecbb2ddde38b02a62\"},\"headline\":\"Fixed- Prolific USB to Serial Driver Not Working on Windows 10\\\/11\",\"datePublished\":\"2022-11-27T11:46:29+00:00\",\"dateModified\":\"2023-04-28T09:35:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/\"},\"wordCount\":1165,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cdn.systweak.com\\\/content\\\/wp\\\/bg_systweak_com\\\/uploads\\\/2022\\\/11\\\/Prolific-USB-to-Serial-Driver-Windows-10-Not-Working-min.jpg\",\"articleSection\":[\"Driver Guide\",\"How To\",\"USB Driver\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/\",\"url\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/\",\"name\":\"Fixed- Prolific USB to Serial Driver Not Working on Windows 10\\\/11\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.systweak.com\\\/blogs\\\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cdn.systweak.com\\\/content\\\/wp\\\/bg_systweak_com\\\/uploads\\\/2022\\\/11\\\/Prolific-USB-to-Serial-Driver-Windows-10-Not-Working-min.jpg\",\"datePublished\":\"2022-11-27T11:46:29+00:00\",\"dateModified\":\"2023-04-28T09:35:16+00:00\",\"description\":\"Is prolific USB to Serial driver causing the issue in connecting devices? 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