{"id":5329,"date":"2020-01-29T16:01:18","date_gmt":"2020-01-29T16:01:18","guid":{"rendered":"https:\/\/www.fileinspect.com\/blog\/?p=5329"},"modified":"2020-01-29T16:01:18","modified_gmt":"2020-01-29T16:01:18","slug":"prolific-usb-to-serial-driver-problem","status":"publish","type":"post","link":"https:\/\/www.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/","title":{"rendered":"Fixing Prolific USB-to-Serial Driver Not Working on Windows 10"},"content":{"rendered":"<p>Trying to connect your devices to Windows 10 using a Prolific USB-to-Serial cable to no avail? On further investigation, do you notice a yellow exclamation mark next to the Prolific USB-to-Serial driver in Device Manager? Then it means that there\u2019s a problem with your Prolific USB-to-Serial driver.<\/p>\n<p>In this post, we\u2019ll look at how to fix \u201cProlific USB-to-Serial driver not working on Windows 10\u201d.<\/p>\n<h2>What is the Prolific USB-to-Serial driver in Windows 10?<\/h2>\n<p>A Prolific USB-to-Serial adapter allows you to connect your PC to any serial devices, such as card readers, digital cameras, PDAs, and modems. With a high data transfer rate and plug-and-play functionality, it saves you the hassle of inserting a serial card and configuring a traditional port.<\/p>\n<p>Now, for this communication to go through the comm port, your PC should have Prolific USB-to-Serial drivers installed. As we all know, a device driver enables the communication between a hardware device and a computer\u2019s operating system. In other words, without device drivers, your hardware devices won&#8217;t function properly.<\/p>\n<h2>What causes Prolific USB-to-Serial driver errors?<\/h2>\n<p>According to a section of users, counterfeit chips are to blame. So, when Prolific, the company behind the original chips, discovered that counterfeits were being sold, it dropped support for the old ones. As a result, earlier chips (version PL-2303) became unusable, giving the error code 10.<\/p>\n<p>To verify if your driver has issues, open Device Manager on your PC and expand \u201cPorts (COM &amp; LPT)\u201d. Double-click \u201cProlific USB-to-Serial Comm Port (COM5)\u201d, and you\u2019ll see one of the following messages:<\/p>\n<ul>\n<li>This Device cannot start (Code 10)<\/li>\n<li>No driver installed for this device<\/li>\n<li>Device driver was not successfully installed<\/li>\n<\/ul>\n<p>If your Prolific USB-to-Serial adapter refuses to work, one of the following could be responsible for the error:<\/p>\n<ul>\n<li>Corrupt, missing, outdated, or incompatible USB drivers<\/li>\n<li>Windows Update<\/li>\n<\/ul>\n<h2>How to fix Prolific USB-to-Serial Comm Port issues on Windows 10<\/h2>\n<h3>Fix 1: Manually download the latest Prolific USB-to-Serial driver<\/h3>\n<p>If you have the required computer skills, you can go to the official Prolific website and search for the latest Prolific USB-to-Serial<\/p>\n<p>driver. Once you find the driver, be sure to check if it&#8217;s compatible with your Windows version. You don\u2019t want to create new problems by installing incompatible device drivers.<\/p>\n<h3>Fix 2: Update your Prolific USB-to-Serial driver via Device Manager<\/h3>\n<p>Using Device Manager is a safer way to update device drivers on your PC. Like we mentioned earlier, a yellow exclamation mark next to the Prolific USB-to-Serial Comm Port driver is a clear indication that the driver is faulty. Updating the Prolific USB-to-Serial driver may resolve the issue.<\/p>\n<p>Here\u2019s how to do it:<\/p>\n<ol>\n<li>Launch \u201cDevice Manager\u201d (press the Win +X shortcut and select \u201cDevice Manager\u201d).<\/li>\n<li>Expand the \u201cPorts (COM &amp; LPT)\u201d category.<\/li>\n<li>Right-click \u201cProlific USB-to-Serial Comm Port (COM 5)\u201d.<\/li>\n<li>Choose \u201cUpdate driver\u201d.<\/li>\n<li>On the window that pops up, click on \u201cSearch automatically for updated driver software\u201d. Windows will try to search for the latest driver and install it on your computer.<\/li>\n<\/ol>\n<p>If using Device Manager doesn\u2019t resolve the issue, try the next solution.<\/p>\n<h3>Fix 3: Automatically update your driver<\/h3>\n<p>Trying to manually update the Prolific USB-to-Serial driver can be tricky if you don\u2019t know what you&#8217;re doing. On the other hand, using Device Manager doesn\u2019t guarantee that the drivers will be updated to the latest versions.<\/p>\n<p>This leaves you with the only sure way recommended by experts \u2013 using third-party software. So, if you don\u2019t want to spend your precious time guessing what driver versions to install, why not try <a href=\"https:\/\/www.auslogics.com\/en\/software\/driver-updater\/\">Auslogics Driver Updater<\/a>? This is a professional utility that automatically detects all the system devices installed on your PC and then scans for driver issues.<\/p>\n<p>Consequently, apart from updating the Prolific USB-to-Serial driver, Auslogics Driver Updater will also update all of the available device drivers on your computer. Using the tool is easy:<\/p>\n<ol>\n<li>Launch Auslogics Driver Updater.<\/li>\n<li>Open the \u201cOverview\u201d tab, and click the \u201cScan for driver issues\u201d button. Wait for a few seconds while the tool scans for old, missing or corrupt drivers.<\/li>\n<li>Once the diagnosis is complete, simply click the \u201cUpdate drivers\u201d button. Alternatively, if you wish to get more details about the driver issues found, open the \u201cDiagnostics\u201d tab. Here, you can select the drivers that you want to be updated by checking the box next to the specific driver.<\/li>\n<li>Next, click the \u201cUpdate all\u201d button.<\/li>\n<\/ol>\n<p>Auslogics Driver Updater will automatically install the latest official driver versions directly from the manufacturers\u2019 websites. It&#8217;s worth pointing out that since the tool first detects your Windows version, it only installs the drivers that are compatible with your system.<\/p>\n<h3>Fix 4: Run the \u201cHardware and Devices\u201d troubleshooter<\/h3>\n<p>You need to try all possible solutions to resolve the Prolific USB-to-Serial Comm Port issues on Windows 10. As such, running the troubleshooter might provide a solution to your problem. To run the troubleshooter, follow these steps:<\/p>\n<ol>\n<li>Press the Windows Key, and click on the gear icon to open the \u201cSettings\u201d app.<\/li>\n<li>Open Update &amp; Security &gt; Troubleshoot.<\/li>\n<li>Locate \u201cHardware and Devices\u201d and click on it to highlight it.<\/li>\n<li>Next, select the \u201cRun the troubleshooter\u201d button. If errors are found, Windows will try to resolve them automatically.<\/li>\n<\/ol>\n<h3>Fix 5: Uninstall Windows updates<\/h3>\n<p>If the error appeared just after Windows installed the automatic updates, then your next course of action would be to uninstall the specific update that gave rise to the Prolific USB-to-Serial driver issue in the first place.<\/p>\n<h4>To do so:<\/h4>\n<ol>\n<li>Go to Start &gt; Settings &gt; Update &amp; Security &gt; Windows Update.<\/li>\n<li>Select the \u201cView update history\u201d link on the right pane.<\/li>\n<li>Click on the \u201cUninstall updates\u201d link.<\/li>\n<li>On the next screen listing the recent updates, search for the update that you suspect to be giving you issues. Use the KB number if you can for a quick search. Alternatively, if you can recall the date when the error first appeared, you can look at the dates on the updates to select the updates within that particular range.<\/li>\n<li>Once you find the update in question, right-click on it and select \u201cUninstall\u201d.<\/li>\n<\/ol>\n<p>Alternatively, if you are not fond of going through long processes or aren\u2019t sure when the update was installed, use System Restore. To proceed:<\/p>\n<ol>\n<li>Press the Windows Key and S combination, and type in System Restore.<\/li>\n<li>Open \u201cCreate a restore point\u201d.<\/li>\n<li>Select \u201cSystem Restore\u201d, and click \u201cNext\u201d.<\/li>\n<li>Choose a restore point before the first occurrence of the Prolific USB-to-Serial Driver error, and then click \u201cNext\u201d. Check the box next to \u201cShow more restore points\u201d to access other restore points.<\/li>\n<li>Click \u201cFinish\u201d. System Restore will need to restart your computer. So, be sure to save your work before you proceed. Allow the process to complete uninterrupted, and you should be able to connect devices to your computer using your Prolific USB-to-Serial adapter without an issue.<\/li>\n<\/ol>\n<p>We hope you have resolved the \u2018Prolific USB-to-Serial driver not working on Windows 10\u2019 issue. If alternative methods have worked for you, please share them with our community by commenting below.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trying to connect your devices to Windows 10 using a Prolific USB-to-Serial cable to no avail? On further investigation, do you notice a yellow exclamation mark next to the Prolific USB-to-Serial driver in Device Manager? Then it means that there\u2019s a problem with your Prolific USB-to-Serial driver. In this post, we\u2019ll look at how to [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":5331,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[78,15,129,61],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fixing Prolific USB-to-Serial Driver Not Working on Windows 10 - The Official FileInspect Blog<\/title>\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.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ivan.diskin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.fileinspect.com\/blog\/#organization\",\"name\":\"Outbyte Computing Pty Ltd\",\"url\":\"https:\/\/www.fileinspect.com\/blog\/\",\"sameAs\":[\"https:\/\/www.youtube.com\/channel\/UCI6brHKmaiiUCcseAlcV3tQ\",\"https:\/\/www.facebook.com\/outbyte\"],\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.fileinspect.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.fileinspect.com\/blog\/wp-content\/uploads\/2021\/05\/1200x630-3.jpg\",\"contentUrl\":\"https:\/\/www.fileinspect.com\/blog\/wp-content\/uploads\/2021\/05\/1200x630-3.jpg\",\"width\":1200,\"height\":630,\"caption\":\"Outbyte Computing Pty Ltd\"},\"image\":{\"@id\":\"https:\/\/www.fileinspect.com\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.fileinspect.com\/blog\/#website\",\"url\":\"https:\/\/www.fileinspect.com\/blog\/\",\"name\":\"The Official FileInspect Blog\",\"description\":\"News and Perspectives from IT Experts\",\"publisher\":{\"@id\":\"https:\/\/www.fileinspect.com\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.fileinspect.com\/blog\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/\",\"url\":\"https:\/\/www.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/\",\"name\":\"Fixing Prolific USB-to-Serial Driver Not Working on Windows 10 - The Official FileInspect Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.fileinspect.com\/blog\/#website\"},\"datePublished\":\"2020-01-29T16:01:18+00:00\",\"dateModified\":\"2020-01-29T16:01:18+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.fileinspect.com\/blog\/prolific-usb-to-serial-driver-problem\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.fileinspect.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cleanup &amp; 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