{"id":753,"date":"2020-04-18T07:30:00","date_gmt":"2020-04-18T07:30:00","guid":{"rendered":"https:\/\/outbyte.com\/blog\/?p=753"},"modified":"2025-01-30T10:51:18","modified_gmt":"2025-01-30T10:51:18","slug":"high-gpu-usage-lockapp-exe","status":"publish","type":"post","link":"https:\/\/outbyte.com\/blog\/high-gpu-usage-lockapp-exe\/","title":{"rendered":"High GPU Usage by LockApp.exe &#8211; How to Fix?"},"content":{"rendered":"\n<p>LockApp.exe is one of the multiple system programs that run in the Microsoft\u00ae Windows\u00ae Operating System. Although it is mainly responsible for displaying the lock screen on Windows, many users have reported high GPU and CPU usage by LockApp.exe. <\/p>\n\n\n\n<p>If you have been experiencing such problems and\/or seeing LockApp.exe error messages and don\u2019t know what they are or how to fix them, you will find this article helpful.<\/p>\n\n\n\n<p>If LockApp.exe is consuming a suspiciously large amount of resources, it\u2019s possible your PC has encountered errors and needs repair. To diagnose your PC and fix errors, you can use this <a href=\"https:\/\/outbyte.com\/software\/pc-repair\/?m=site_blog_article_pcr_pplink&amp;utm_source=outbyte&amp;utm_medium=blog&amp;utm_campaign=article_pcr_pplink&amp;utm_term=Outbyte+PC+Repair&amp;utm_content=\/blog\/high-gpu-usage-lockapp-exe\/\">PC repair tool<\/a>.<\/p>\n\n\n\n<p class=\"download-button-wrapper\"><a href=\"https:\/\/outbyte.com\/software\/pc-repair\/download\/\">Download PC Repair<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_LockAppexe\"><\/span>What Is LockApp.exe?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>LockApp.exe is a Windows component that controls the lock screen display. It runs when you\u2019re on the lock screen, trying to sign into your PC, when you use the \u2018Lock\u2019 option in the \u2018Start\u2019 menu, or when you utilize the <kbd>Win<\/kbd> + <kbd>L<\/kbd> shortcut to lock your PC. So, LockApp.exe doesn\u2019t work all the time.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"687\" height=\"341\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/lockapp.exe-gpu-cpu.png\" alt=\"High CPU and GPU Usage by LockApp.exe\" class=\"wp-image-2365\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/lockapp.exe-gpu-cpu.png 687w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/lockapp.exe-gpu-cpu-300x149.png 300w\" sizes=\"auto, (max-width: 687px) 100vw, 687px\" \/><\/figure>\n\n\n\n<p>It shows the lock screen overlay before you sign in and suspends itself after you\u2019re signed in. This is the screen that shows the background image, time, date, and other items you\u2019ve selected to appear on your lock screen.<\/p>\n\n\n\n<p>Here\u2019s some additional information to help you understand the LockApp.exe process:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Software Developer:<\/strong> Microsoft Corporation<\/li>\n\n\n\n<li><strong>Software Program:<\/strong> <a href=\"https:\/\/www.microsoft.com\/en-us\/windows\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Microsoft\u00ae Windows\u00ae Operating System<\/a><\/li>\n\n\n\n<li><strong>Operating System: <\/strong>Windows XP, 7, 8, and 10<\/li>\n\n\n\n<li><strong>File Operating System:<\/strong> Windows NT 32-bit<\/li>\n\n\n\n<li><strong>Executable File: <\/strong>LockApp.exe<\/li>\n\n\n\n<li><strong>Known File Size (bytes):<\/strong> 3,744,160<\/li>\n\n\n\n<li><strong>Location:<\/strong> <code>C:\\Windows\\SystemApps\\Microsoft.LockApp_cw5n1h2txyewy<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"LockAppexe_Error_Messages\"><\/span>LockApp.exe Error Messages<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>When you try to sign in or lock your system, LockApp.exe can trigger some runtime errors. This can also occur if LockApp.exe has been renamed or moved from its location. The LockApp.exe error messages you may encounter include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LockApp.exe Application Error.<\/li>\n\n\n\n<li>The file LockApp.exe is missing or corrupt.<\/li>\n\n\n\n<li>Windows failed to start \u2013 LockApp.exe.<\/li>\n\n\n\n<li>LockApp.exe could not be installed.<\/li>\n\n\n\n<li>LockApp.exe is not a valid Win32 application.<\/li>\n\n\n\n<li>LockApp.exe is not running.<\/li>\n\n\n\n<li>Cannot find LockApp.exe.<\/li>\n\n\n\n<li>Faulting Application Path: LockApp.exe.<\/li>\n\n\n\n<li>LockApp.exe could not be started.<\/li>\n\n\n\n<li>LockApp.exe failed to initialize properly.<\/li>\n\n\n\n<li>LockApp.exe could not be launched. Class not registered.<\/li>\n\n\n\n<li>LockApp.exe has encountered a problem and needs to close.<\/li>\n\n\n\n<li>LockApp.exe \u2013 Bad Image.<\/li>\n\n\n\n<li>LockApp.exe could not be found.<\/li>\n\n\n\n<li>Error starting program: LockApp.exe.<\/li>\n<\/ul>\n\n\n\n<p>If you encounter any of the errors above, use the Registry Editor or File Explorer to disable LockApp.exe. We\u2019ll show all the necessary steps later in this article. <\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Read also: <a href=\"https:\/\/outbyte.com\/blog\/microsoft-photos-exe-virus-fix-high-cpu\/\" target=\"_blank\" rel=\"noreferrer noopener\">Is Microsoft.photos.exe a virus? Fix high CPU usage<\/a><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Does_LockAppexe_Hog_System_Resources\"><\/span>Does LockApp.exe Hog System Resources?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The LockApp.exe process isn\u2019t designed to consume a lot of system resources. It only uses 10-12 MB of your system memory at the lock screen and 48 K of memory when the process is suspended. However, some Windows users have complained that LockApp.exe uses up to 12000 K of memory, and others have <a href=\"https:\/\/answers.microsoft.com\/en-us\/windows\/forum\/all\/lockappexe-consistently-takes-up-30-cpu-for-a\/a08cc78f-4230-4e7c-8692-a32cd0e40b30\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">reported 25-30% CPU background usage<\/a>.<\/p>\n\n\n\n<p>If LockApp.exe is taking a large amount of GPU and\/or CPU and running for a long time, it may mean that your PC has been locked and awake for a while. <\/p>\n\n\n\n<p>For example, when you run into an <a href=\"https:\/\/outbyte.com\/blog\/fix-origin-thin-setup-is-not-opening\/\">Origin Thin setup<\/a> problem that has left your computer unresponsive for some time, LockApp.exe might compound the issue by using up the resources. This should also be the case when there\u2019s <a href=\"https:\/\/outbyte.com\/blog\/windows-shell-experience-host-high-cpu\/\">Windows Shell Experience Host high cpu <\/a>usage<\/p>\n\n\n\n<p>In this case, if you sign into your PC, the lock app should automatically suspend itself.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Disable_LockAppexe\"><\/span>How to Disable LockApp.exe?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Disabling LockApp.exe may not improve your PC\u2019s speed, but it will help resolve LockApp.exe errors and make your sign-in process faster. When LockApp.exe is disabled, you get to see the sign-in screen without the background image and other items.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Disable_LockAppexe_Using_the_Registry_Editor\"><\/span>Disable LockApp.exe Using the Registry Editor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Step 1:<\/strong> Go to the Start menu, type <code class=\"inline\">regedit<\/code>, and launch the Registry Editor.<\/p>\n\n\n\n<p><strong>Step 2: <\/strong>Navigate to the path below:<\/p>\n\n\n\n<p><code>HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Authentication\\LogonUI\\SessionData<\/code><\/p>\n\n\n\n<p><strong>Step 3: <\/strong>In the right pane, locate the DWORD AllowLockScreen, and double-click on it.<\/p>\n\n\n\n<p><strong>Step 4: <\/strong>Change the value from 1 to 0 and click OK.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"632\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/\u043aegistry-editor.png\" alt=\"Disable LockApp.exe Using the Registry Editor\" class=\"wp-image-777\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/\u043aegistry-editor.png 880w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/\u043aegistry-editor-300x215.png 300w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/\u043aegistry-editor-768x552.png 768w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/figure>\n\n\n\n<p>Close the Registry Editor window, and this will stop LockApp.exe from working on your PC.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Disable_LockAppexe_Using_File_Explorer\"><\/span>Disable LockApp.exe Using File Explorer<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"schema-how-to wp-block-yoast-how-to-block\"><p class=\"schema-how-to-total-time\"><span class=\"schema-how-to-duration-time-text\">Time needed:&nbsp;<\/span>3 minutes. <\/p><p class=\"schema-how-to-description\">How to disable LockApp.exe though File Explorer<\/p> <ol class=\"schema-how-to-steps\"><li class=\"schema-how-to-step\" id=\"how-to-step-1605602370034\"><strong class=\"schema-how-to-step-name\">WIN+E<\/strong> <p class=\"schema-how-to-step-text\">Use the <kbd>Win<\/kbd> + <kbd>E<\/kbd> shortcut to open File Explorer.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1605602530589\"><strong class=\"schema-how-to-step-name text-break\">C:\\Windows\\SystemApps<\/strong> <p class=\"schema-how-to-step-text\">Navigate to this path: C:\\Windows\\SystemApps<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1605602543356\"><strong class=\"schema-how-to-step-name text-break\">Microsoft.LockApp_cw5n1h2txyewy folder<\/strong> <p class=\"schema-how-to-step-text\">Locate the <span class=\"text-break\">Microsoft.LockApp_cw5n1h2txyewy<\/span> folder, right-click on it, and choose Rename.<img decoding=\"async\" alt=\"\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/file-explorer.png\"><\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1605602571002\"><strong class=\"schema-how-to-step-name\">Change the name<\/strong> <p class=\"schema-how-to-step-text text-break\">Change the name to <code class=\"inline\">Microsoft.LockApp_cw5n1h2txyewy.backup<\/code>.<\/p> <\/li><\/ol><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_LockAppexe_a_Virus\"><\/span>Is LockApp.exe a Virus?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>As you have seen above, LockApp.exe is a legitimate and core system file in the Microsoft Windows OS. However, it\u2019s an executable file. So, hackers can attempt to make imitations of this program to attack your system. Although this is possible, there haven\u2019t been reports of viruses impersonating LockApp.exe. The same truth is for such cases when you notice <a href=\"https:\/\/outbyte.com\/blog\/multiple-runtimebroker-exe-in-task-manager-what-to-do\/\">multiple RuntimeBroker.exe<\/a> or an unusual activity of <a href=\"https:\/\/outbyte.com\/blog\/what-is-yourphone-exe-windows-10-virus\/\">YourPhone.exe<\/a>. <\/p>\n\n\n\n<p>To check for possible infection, you can use the \u2018Task Manager\u2019 to verify the location of LockApp.exe and check whether it is a virus or not.<\/p>\n\n\n\n<p>Follow the steps below to verify the location of LockApp.exe:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Right-click the Start menu and launch Task Manager.<\/li>\n\n\n\n<li>Navigate to the Details tab.<\/li>\n\n\n\n<li>Locate LockApp.exe, right-click on it, and choose Open file location.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"483\" height=\"284\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/lockapp-task-manager.png\" alt=\"lockapp.exe task manager\" class=\"wp-image-785\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/lockapp-task-manager.png 483w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/lockapp-task-manager-300x176.png 300w\" sizes=\"auto, (max-width: 483px) 100vw, 483px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>As the File Explorer window pops up, check if the LockApp.exe process is located in this folder: <code>C:\\Windows\\SystemApps\\Microsoft.LockApp_cw5n1h2txyewy<\/code><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"839\" height=\"343\" src=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/systemapps-microsoft.lockapp.png\" alt=\"LockApp.exe process is located in the folder C:\\Windows\\SystemApps\" class=\"wp-image-781\" srcset=\"https:\/\/outbyte.com\/blog\/wp-content\/uploads\/systemapps-microsoft.lockapp.png 839w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/systemapps-microsoft.lockapp-300x123.png 300w, https:\/\/outbyte.com\/blog\/wp-content\/uploads\/systemapps-microsoft.lockapp-768x314.png 768w\" sizes=\"auto, (max-width: 839px) 100vw, 839px\" \/><\/figure>\n\n\n\n<p>If the LockApp.exe process is there, it\u2019s safe. But if LockApp.exe is in a different folder, it could be a virus, ransomware, or spyware. In that case, it\u2019s advisable to run a full system scan.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"LockAppexe_FAQ\"><\/span>LockApp.exe FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1605276383695\"><strong class=\"schema-faq-question\">What is LockApp.exe?<\/strong> <p class=\"schema-faq-answer\">LockApp.exe is a Windows component that controls the Windows lock screen display. It runs when your computer is on the lock screen when you\u2019re trying to sign in to your PC or utilize the Win + L shortcut to lock your PC. This means that LockApp.exe doesn\u2019t work all the time but only when your screen is under the lock display. You should not see it on the Task Manager unless it\u2019s using too much processor power.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1605276413275\"><strong class=\"schema-faq-question\">Does LockApp.exe Hog System Resources?<\/strong> <p class=\"schema-faq-answer\">The LockApp.exe process is not designed to consume a lot of system resources. Ordinarily, it should only use 10-12 MB of the system\u2019s memory. When the process is suspended, it should use 48 Kb. But if you see 25-30% CPU\/GPU background usage, it is an indication of a problem. In most cases, this means that the PC has been on lock screen display but awake for a long time.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1605276510984\"><strong class=\"schema-faq-question\">Is LockApp.exe a Virus?<\/strong> <p class=\"schema-faq-answer\">LockApp.exe is not a virus but a legitimate application designed and distributed by Microsoft Corporation and with a clear role and function in the Windows. However, because it is an .exe file, it can be vulnerable to malware or virus attacks.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1605276543957\"><strong class=\"schema-faq-question\">What Can I Do When LockApp.exe is Showing High GPU Usage?<\/strong> <p class=\"schema-faq-answer\">If you suspect that the LockApp.exe is using high CPU\/GPU resource because of a malware infection, then you should scan your computer for malware. Otherwise, the best way to resolve the LockApp.exe issue is to disable it. Disabling LockApp.exe may not improve your computer\u2019s speed, but it will help resolve LockApp.exe errors and make your sign-in process faster.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>LockApp.exe is one of the multiple system programs that run in the Microsoft\u00ae Windows\u00ae Operating System. Although it is mainly responsible for displaying the lock screen on Windows, many users have reported high GPU and CPU usage by LockApp.exe. If you have been experiencing such problems and\/or seeing LockApp.exe error messages and don\u2019t know what&#8230; <a href=\"https:\/\/outbyte.com\/blog\/high-gpu-usage-lockapp-exe\/\" target=\"_blank\">Read more.<\/a><\/p>\n","protected":false},"author":13,"featured_media":2365,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[57,37,43,55,115,59],"class_list":["post-753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fixes","tag-cpu-issue","tag-exe-error","tag-file-explorer","tag-gpu-issue","tag-windows-registry","tag-windows-system-file"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>High GPU Usage by LockApp.exe - How to Fix? - Outbyte Official Blog<\/title>\n<meta name=\"description\" content=\"Many users have reported high GPU and CPU usage by LockApp.exe. 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