{"id":6729,"date":"2018-12-11T18:22:06","date_gmt":"2018-12-11T18:22:06","guid":{"rendered":"https:\/\/www.auslogics.com\/en\/articles\/?p=6729"},"modified":"2025-10-16T23:11:38","modified_gmt":"2025-10-16T23:11:38","slug":"cant-connect-to-system-event-notification","status":"publish","type":"post","link":"https:\/\/www.auslogics.com\/en\/articles\/cant-connect-to-system-event-notification\/","title":{"rendered":"Windows Could Not Connect to the System Event Notification Service&#8230;"},"content":{"rendered":"<p>Is your computer starting up too slowly? Are you unable to log in with your standard user account on Windows? And even when you log in using an administrator account, you find this error message:<\/p>\n<p><em>&#8220;Failed to connect to a Windows service. Windows could not connect to the System Event Notification Service service.&#8221;<\/em><\/p>\n<p>Don\u2019t worry; it\u2019s probably not a hardware issue. Don&#8217;t buy a new PC.<\/p>\n<p>The problem can be solved by either one or more of these solutions:<\/p>\n<ul>\n<li>check your computer\u2019s setting for the System Event Notification Service<\/li>\n<li>reset the Winsock Catalog<\/li>\n<li>update video card drivers<\/li>\n<li>uninstall the Widows KB2952664 update<\/li>\n<li>optimize Windows for faster performance<\/li>\n<\/ul>\n<p>These solutions can apply on Windows 7, 8 and 10. So, here\u2019s how to\u00a0fix \u2018Windows could not connect to the System Event Notification Service on Windows 10, 8 and 7.\u2019<\/p>\n<h2>1. Check Your Computer\u2019s Setting for the System Event Notification Service<\/h2>\n<p>The error message you got may be caused by incorrect settings of the System Event Notification Service.<\/p>\n<p><strong>To correct the settings, follow these steps:<\/strong><\/p>\n<ol>\n<li>On your keyboard, press both the <code>Windows logo and R<\/code> keys.<\/li>\n<li>Once the <em>Run box<\/em> pops up, type:\u00a0<code>services.msc<\/code>. Press <code>Enter<\/code>.<\/li>\n<li>Right-click <em>System Event Notification Service<\/em>. Select <em>Restart or Start<\/em> (if <em>Restart<\/em> is inactive).<\/li>\n<li>Again, right-click <em>System Event Notification Service<\/em>. Select <em>Properties<\/em>.<\/li>\n<li>On the <em>Properties<\/em> window, change the <em>Startup<\/em> <em>type<\/em> to <em>Automatic<\/em>.<\/li>\n<li>Click <em>Apply<\/em>, and then <em>OK<\/em>.<\/li>\n<\/ol>\n<p>Once you restart your computer, the error message should be gone.<\/p>\n<h2>2. Reset the Winsock Catalog<\/h2>\n<p>If the first solution didn\u2019t work, you could also try resetting the Winsock Catalog. This will deal with the problem of interference of your Winsock Catalog settings.<\/p>\n<p><strong>Here\u2019s how to reset it:<\/strong><\/p>\n<ol>\n<li>On your keyboard, press both the <code>Windows and R<\/code> keys. The <em>Run box<\/em> will pop up.<\/li>\n<li>Type\u00a0<code>cmd<\/code>. Now, press these three keys together: <code>Shift, Ctrl, and Enter<\/code>.<\/li>\n<li>This opens an elevated <em>Command Prompt<\/em>.<\/li>\n<li>Type\u00a0<code>netsh winsock reset<\/code>. Finally, press <code>Enter<\/code>.<\/li>\n<\/ol>\n<p>Now, restart your computer. Most likely, the error message won&#8217;t appear anymore.<\/p>\n<h2>3. Update Video Card Drivers<\/h2>\n<p>If the error message still appears on startup, your video card driver may be outdated, corrupted or incompatible. Updating the driver will fix your problem.<\/p>\n<div class=\"tipsbox\">\r\n\t<div class=\"tipsbox__heading\">\r\n\t\t<div class=\"tipsbox__arrow-right\"><\/div>\r\n\t\t<div class=\"tipsbox__shield\">PRO TIP<\/div>\r\n\t\t<div class=\"tipsbox__arrow-left\"><\/div>\r\n\t<\/div>\r\n\t<div class=\"tipsbox__text\">A convenient and safe method to update the driver is using <a href=\"https:\/\/www.auslogics.com\/go\/blog_auslogics_fromarticles\/en\/software\/driver-updater\/downloads\/?ref=cant-connect-to-system-event-notification\">Auslogics Driver Updater<\/a>. Using this software, you\u2019ll update all your PC drivers in one click, which ensures smooth hardware operation and prevents device conflicts.<\/p>\n<p>More importantly, Auslogics Driver Updater only downloads and installs official driver versions specifically suited to your device. Hence, you get compatible drivers and avoid corrupt ones.<\/p>\n<p>It takes away the headache of figuring out which driver suits your computer and even what type of hardware you have. The software automatically detects your particular device and finds the most up-to-date driver compatible with it.<\/p>\n<p>The free version lets you scan your PC for missing or outdated drivers, and the pro version lets you download and install all drivers with one click. And it backs up your system while doing so.<\/div>\r\n<\/div>\r\n\n<p><strong>Here\u2019s how to use Auslogics Driver Updater:<\/strong><\/p>\n<ol>\n<li>Download the software from the\u00a0<a href=\"https:\/\/www.auslogics.com\/go\/blog_auslogics_fromarticles\/en\/software\/driver-updater\/downloads\/?ref=cant-connect-to-system-event-notification\">Auslogics Driver Updater<\/a> page, and then install it.<\/li>\n<li>When you run the program, it starts scanning your system for missing or outdated drivers.<\/li>\n<li>You\u2019ll get a list of all drivers to update. Click <em>Update All<\/em> to update them at once (this will open a payment page, where you can purchase the pro version and update your drivers with one click).<\/li>\n<\/ol>\n<p>After restarting your computer, the error message should be gone.<\/p>\n<h2>4. Uninstall the Windows KB2952664 update<\/h2>\n<p>In case the previous solutions didn\u2019t work, you can try one last option.<\/p>\n<p>Windows KB2952664 Update may be causing the error message. So, you have to uninstall it.<\/p>\n<p><strong>Here\u2019s how to do it:<\/strong><\/p>\n<ol>\n<li>On your keyboard, press both the <code>Windows logo and R<\/code> keys.<\/li>\n<li>The <em>Run box<\/em> opens up.<\/li>\n<li>\u00a0Type <code>control<\/code>. Press <code>Enter<\/code>.<\/li>\n<li>Under <em>Programs<\/em>, select <em>Uninstall a program<\/em>.<\/li>\n<li>Click to view installed updates.<\/li>\n<li>Find <em>KB2952664<\/em>. Right-click on it and select <em>Uninstall<\/em>.<\/li>\n<\/ol>\n<p>Restart your computer to apply those changes. When it starts up, the error message should be gone.<\/p>\n<p>However, the delay in the startup needs fixing too.<\/p>\n<div class=\"cta-block cta-block_troubleshooter\" data-cta-type=\"tsh\" data-cta-position=\"middle\" data-keyword=\"cantconnecttosystem\">\r\n\t<div class=\"cta-block__heading_tsh\">Fix this issue quickly<\/div>\r\n    <div class=\"cta-block__text_tsh\">You can try using a safe and totally free tool developed by the Auslogics team of experts.<\/div>\r\n\t<div class=\"cta-block__title_tsh\">A few simple steps to troubleshoot the issue:<\/div>\r\n\t<div class=\"cta-block__list\">\r\n    \t<div class=\"cta-block__text_tsh\">Download the tiny Auslogics TroubleShooter tool.<\/div>\r\n    \t<div class=\"cta-block__text_tsh\">Run the application (no installation is needed).<\/div>\r\n    \t<div class=\"cta-block__text_tsh\">The app will check for the issue mentioned in the article. When the scan is done, check that this is the issue you were looking to solve and click \u2018Apply now\u2019 to apply the recommended fix.<\/div>\r\n\t<\/div>\r\n    <div class=\"cta-block__text_tsh\">You can use the app to troubleshoot other malfunctions for free by simply typing in a brief description of the issue your PC is experiencing. Or you can scan your PC for performance issues using the My Scanner tab.<\/div>\r\n    <div class=\"cta-block__btn-group\">\r\n        <a class=\"cta-block__download-btn\" href=\"\/en\/software\/article-tools\/downloads\/\">Download for Free<\/a>\r\n        <div class=\"cta-block__win\">Developed for <br>Windows 10\/11 (8, 7, Vista, XP)<\/div>\r\n    <\/div>\r\n    <div class=\"cta-block__privacy\">\r\n\t\tPlease review&#8195;<a href=\"\/en\/eula\/\">EULA<\/a>&#8195;\r\n\t\tand&#8195;<a href=\"\/en\/legal\/\">Privacy Policy<\/a>\r\n    <\/div>\r\n<\/div>\r\n\n<h2>5. Optimize Windows 7 for Faster Performance<\/h2>\n<p>The slow start of your PC could be a performance issue. This can be sorted out using Windows\u2019 Performance Troubleshooter to find and fix the problem automatically.<\/p>\n<p>The troubleshooter checks such issues as how many users are logged in and whether you have multiple programs running simultaneously. These are issues which can slow down your computer.<\/p>\n<p><strong>Follow these steps:<\/strong><\/p>\n<ol>\n<li>Click <em>Windows\u2019 Start<\/em> button.<\/li>\n<li>Search in the <em>Start menu<\/em>, and click on <em>Control Panel<\/em>.<\/li>\n<li>Type <code>troubleshooter<\/code> in the search box.<\/li>\n<li>Select <em>Troubleshooting<\/em>.<\/li>\n<li>Go to <em>System and Security<\/em> and click on <em>Check for Performance Issues<\/em>.<\/li>\n<\/ol>\n<p>Once the troubleshooter is done, your computer should be back to its normal speed.<\/p>\n<p>Combine this with limiting how many programs run at startup. Go to any application that runs at startup and change the settings.<\/p>\n<p>Defragmenting your hard disk also helps. Disk defragmenting ensures maximum efficiency of your hard drive, so it doesn\u2019t waste time locating related data spread out in different parts. To find the disk defragmenting tool in Windows, search for\u00a0<code>disk defrag<\/code> in the Windows Start page.<\/p>\n<p>Finally, adding more RAM capacity will help, as well as restarting your PC.<\/p>\n<p>Which of these fixes have you tried and which one worked for you? Share in the comments below.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Is your computer slow to start, or are you seeing an error with the System Event Notification Service? This guide provides solutions to fix these issues on Windows 7, 8, and 10, ensuring smoother performance.<\/p>\n","protected":false},"author":79,"featured_media":20365,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[815,811,831,881],"tags":[23,109,25,619],"class_list":["post-6729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-maintenance","category-optimization","category-pc-performance","category-windows-update-errors","tag-pc-diagnostics","tag-pc-performance","tag-windows-7","tag-windows-tweaks"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Windows Could Not Connect to the System Event Notification Service... &#8212; Auslogics Blog<\/title>\n<meta name=\"description\" content=\"These solutions can apply on Windows 7, 8 and 10. 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So, here\u2019s how to\u00a0fix \u2018Windows could not connect to the System Event Notification Service&#039;.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.auslogics.com\/en\/articles\/cant-connect-to-system-event-notification\/\" \/>\n<meta property=\"og:site_name\" content=\"Auslogics Blog | Tips to Diagnose &amp; Resolve Computer Issues\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Auslogics\" \/>\n<meta property=\"article:published_time\" content=\"2018-12-11T18:22:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-16T23:11:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2018\/12\/cant-connect-to-system-event-notification-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1440\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sviat Soldatenkov\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@mrsoldatenkov\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sviat Soldatenkov\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/\"},\"author\":{\"name\":\"Sviat Soldatenkov\",\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/#\\\/schema\\\/person\\\/fac982149014e8f4d17d2f97b77d122e\"},\"headline\":\"Windows Could Not Connect to the System Event Notification Service&#8230;\",\"datePublished\":\"2018-12-11T18:22:06+00:00\",\"dateModified\":\"2025-10-16T23:11:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/\"},\"wordCount\":889,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/wp-content\\\/uploads\\\/2018\\\/12\\\/cant-connect-to-system-event-notification-scaled.jpg\",\"keywords\":[\"PC Diagnostics\",\"PC Performance\",\"Windows 7\",\"Windows Tweaks\"],\"articleSection\":[\"Maintenance\",\"Optimization\",\"PC Performance\",\"Windows Update Errors\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/\",\"url\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/\",\"name\":\"Windows Could Not Connect to the System Event Notification Service... &#8212; Auslogics Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/cant-connect-to-system-event-notification\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/wp-content\\\/uploads\\\/2018\\\/12\\\/cant-connect-to-system-event-notification-scaled.jpg\",\"datePublished\":\"2018-12-11T18:22:06+00:00\",\"dateModified\":\"2025-10-16T23:11:38+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.auslogics.com\\\/en\\\/articles\\\/#\\\/schema\\\/person\\\/fac982149014e8f4d17d2f97b77d122e\"},\"description\":\"These solutions can apply on Windows 7, 8 and 10. 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For as long as I can remember, I\u2019ve always been into tech. It all started with playing DOOM on a prehistoric Pentium computer and teaching myself how to install software and deal with the countless bugs (not much has changed in that regard). I went on to earn an associate degree in computer science and a master\u2019s degree in linguistics, followed by over 11 years of work blending technology, translation, and interpretation. Throughout my career, I\u2019ve worn many hats in the tech world, focusing primarily on software (I\u2019ve had my share of dealing with all types of errors), Windows- and Linux-based systems, networks, and video streaming technologies. During my time as a field application engineer at a leading live video streaming solutions company, I brushed up on my hardware and video encoding skills, particularly handling devices prone to overheating. 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So, here\u2019s how to\u00a0fix \u2018Windows could not connect to the System Event Notification Service'.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.auslogics.com\/en\/articles\/wp-json\/wp\/v2\/posts\/6729","og_locale":"en_US","og_type":"article","og_title":"Windows Could Not Connect to the System Event Notification Service...","og_description":"These solutions can apply on Windows 7, 8 and 10. 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So, here\u2019s how to\u00a0fix \u2018Windows could not connect to the System Event Notification Service'.","breadcrumb":{"@id":"https:\/\/www.auslogics.com\/en\/articles\/cant-connect-to-system-event-notification\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.auslogics.com\/en\/articles\/cant-connect-to-system-event-notification\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.auslogics.com\/en\/articles\/cant-connect-to-system-event-notification\/#primaryimage","url":"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2018\/12\/cant-connect-to-system-event-notification-scaled.jpg","contentUrl":"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2018\/12\/cant-connect-to-system-event-notification-scaled.jpg","width":2560,"height":1440,"caption":"How to fix Windows Could Not Connect to the System Event Notification Service"},{"@type":"BreadcrumbList","@id":"https:\/\/www.auslogics.com\/en\/articles\/cant-connect-to-system-event-notification\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Tech Wisdom Blog","item":"https:\/\/www.auslogics.com\/en\/articles\/"},{"@type":"ListItem","position":2,"name":"Optimization","item":"https:\/\/www.auslogics.com\/en\/articles\/category\/optimization\/"},{"@type":"ListItem","position":3,"name":"PC Performance","item":"https:\/\/www.auslogics.com\/en\/articles\/category\/optimization\/pc-performance\/"},{"@type":"ListItem","position":4,"name":"Windows Could Not Connect to the System Event Notification Service&#8230;"}]},{"@type":"WebSite","@id":"https:\/\/www.auslogics.com\/en\/articles\/#website","url":"https:\/\/www.auslogics.com\/en\/articles\/","name":"Auslogics Blog | Tips to Diagnose &amp; Resolve Computer Issues","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.auslogics.com\/en\/articles\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.auslogics.com\/en\/articles\/#\/schema\/person\/fac982149014e8f4d17d2f97b77d122e","name":"Sviat Soldatenkov","description":"Hey there, I\u2019m Sviat from Auslogics, and I\u2019m excited to welcome you to my blog page and share a bit about myself with you! For as long as I can remember, I\u2019ve always been into tech. It all started with playing DOOM on a prehistoric Pentium computer and teaching myself how to install software and deal with the countless bugs (not much has changed in that regard). I went on to earn an associate degree in computer science and a master\u2019s degree in linguistics, followed by over 11 years of work blending technology, translation, and interpretation. Throughout my career, I\u2019ve worn many hats in the tech world, focusing primarily on software (I\u2019ve had my share of dealing with all types of errors), Windows- and Linux-based systems, networks, and video streaming technologies. During my time as a field application engineer at a leading live video streaming solutions company, I brushed up on my hardware and video encoding skills, particularly handling devices prone to overheating. 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