{"id":28597,"date":"2018-11-30T05:49:28","date_gmt":"2018-11-30T05:49:28","guid":{"rendered":"https:\/\/www.stellarinfo.com\/blog\/?p=28597"},"modified":"2025-05-13T04:53:48","modified_gmt":"2025-05-13T04:53:48","slug":"time-machine-not-working-after-updating-macos","status":"publish","type":"post","link":"https:\/\/www.stellarinfo.com\/blog\/time-machine-not-working-after-updating-macos\/","title":{"rendered":"Fix Time Machine Not Working after MacOS Update"},"content":{"rendered":"<?xml encoding=\"utf-8\" ?><?xml encoding=\"utf-8\" ?><p>Apple&rsquo;s built-in backup utility, Time Machine, is used to back up your Mac and all files stored on your HD. Backups are an excellent way to protect your data. However, you may encounter various issues with your Mac just after a macOS update. Today we will discuss Time Machine issues and what to do when <a href=\"https:\/\/www.stellarinfo.com\/blog\/fix-time-machine-backup-failed\/\" target=\"_blank\" rel=\"noreferrer noopener\">Time Machine fails<\/a> after the OS upgrade.<\/p><h2 class=\"wp-block-heading\" id=\"how-to-fix-time-machine-not-working-after-updating-macos?\">How to Fix Time Machine not Working after Updating macOS?<\/h2><p>Here&rsquo;s a quick checklist for repairing the Time Machine.<\/p><h3 class=\"wp-block-heading\" id=\"h-a-restart-your-mac\">A. Restart Your Mac<\/h3><p>The easiest solution to fix the issues is to restart your Mac. It deletes system-related stale data and fixes macOS&rsquo;s odd glitches and bugs.<\/p><p><strong>Here&rsquo;s how to do it:<\/strong><\/p><p>1. Go to the <strong>Apple logo<\/strong> and select <strong>Restart<\/strong>.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"598\" height=\"389\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image4-2.png\" alt=\"Apple logo &gt; Restart\" class=\"wp-image-113772 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image4-2.png 598w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image4-2-300x195.png 300w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><figcaption class=\"wp-element-caption\"><em>Apple logo &gt; Restart<\/em><\/figcaption><\/figure>\n<\/div><p>2. When the <strong><em>Are you sure you want to restart your Mac<\/em><\/strong><em> <\/em>message appears, uncheck the box next to <strong>Reopen windows when logging back in<\/strong> and click <strong>Restart<\/strong>.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"599\" height=\"274\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image6-4.png\" alt=\"uncheck Reopen windows when logging back in\" class=\"wp-image-113773 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image6-4.png 599w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image6-4-300x137.png 300w\" sizes=\"auto, (max-width: 599px) 100vw, 599px\" \/><figcaption class=\"wp-element-caption\"><em>Uncheck Reopen windows when logging back in<\/em><\/figcaption><\/figure>\n<\/div><p>3. After the reboot, reopen the Time Machine app and restart the backup process.<\/p><h3 class=\"wp-block-heading\">B. Check the Latest macOS Updates<\/h3><p>One of the reasons you are having problems with Time Machine is that you have an outdated macOS version or installed it from a source other than the official Apple resources.&nbsp;<\/p><p><strong>Follow the steps below to update macOS to the most recent version:<\/strong><\/p><p>1. Navigate to the <strong>Apple menu<\/strong>.<\/p><p>2. Select <strong>About This Mac<\/strong> &gt; <strong>Software Update.<\/strong><\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"695\" height=\"327\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image7-3.png\" alt=\"About This Mac &gt; Software Update &gt; Upgrade Now\" class=\"wp-image-113774 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image7-3.png 695w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image7-3-300x141.png 300w\" sizes=\"auto, (max-width: 695px) 100vw, 695px\" \/><figcaption class=\"wp-element-caption\"><em>About This Mac &gt; Software Update &gt; Upgrade Now<\/em><\/figcaption><\/figure>\n<\/div><p>3. Search for new macOS updates in the newly opened window. If any are found, click <strong>Upgrade Now<\/strong> to get the most recent update.<\/p><h3 class=\"wp-block-heading\">C. Try to Restart Time Machine Backup<\/h3><p>Stopping and restarting the backup process may help resolve the problem.<\/p><p><strong>To restart the Time Machine backup, perform the following steps:<\/strong><\/p><p>1. Select <strong>System Preferences<\/strong> from the<strong> Apple menu<\/strong>.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"682\" height=\"398\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image3-3.png\" alt=\"Apple menu &gt; System Preferences\" class=\"wp-image-113775 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image3-3.png 682w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image3-3-300x175.png 300w\" sizes=\"auto, (max-width: 682px) 100vw, 682px\" \/><figcaption class=\"wp-element-caption\"><em>Apple menu &gt; System Preferences<\/em><\/figcaption><\/figure>\n<\/div><p>2. Choose <strong>Time Machine<\/strong>.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"868\" height=\"726\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image5-4.png\" alt=\"System Preferences &gt; Time Machine\" class=\"wp-image-113776 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image5-4.png 868w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image5-4-300x251.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image5-4-768x642.png 768w\" sizes=\"auto, (max-width: 868px) 100vw, 868px\" \/><figcaption class=\"wp-element-caption\"><em>System Preferences &gt; Time Machine<\/em><\/figcaption><\/figure>\n<\/div><p>3. To cancel the current Time Machine backup, click the <strong>X<\/strong> button.<\/p><p>4. Select<strong> Back Up Now<\/strong>.<\/p><h3 class=\"wp-block-heading\">D. Run First Aid<\/h3><p>You can run disk diagnostics using the First Aid utility. It will help if the Time Machine issue is connected to the disk you use as a backup HD.<\/p><p><strong>You must first launch Disk Utility in <\/strong><a href=\"https:\/\/www.stellarinfo.com\/blog\/macos-recovery-mode-and-how-to-use-it\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Recovery Mode<\/strong><\/a><strong>. Follow these steps:<\/strong><\/p><p><strong>For Macs with Intel processors:<\/strong><\/p><ol class=\"wp-block-list\">\n<li>Reboot your Mac.<\/li>\n\n\n\n<li>Hold down the <strong>Command + R<\/strong> keys.<\/li>\n\n\n\n<li>When the macOS utility window appears, launch<strong> Disk Utility<\/strong>.<\/li>\n<\/ol><p><strong>For M1-based Macs:<\/strong><\/p><ol class=\"wp-block-list\">\n<li>Restart your Mac and hold the <strong>Power <\/strong>button until you see the<strong> Loading Startup Options<\/strong> message.<\/li>\n\n\n\n<li>Open the <strong>Disk Utility<\/strong> from the Gear icon menu.<\/li>\n<\/ol><p><strong>Do the following to run First Aid:<\/strong><\/p><p>1. Launch<em> <\/em><strong>Disk Utility<\/strong> and select <strong>View<em> <\/em><\/strong>&gt; <strong>Show All Devices<\/strong> from the menu bar.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"579\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image2-3.png\" alt=\"Disk Utility &gt; View &gt; Show All Devices\" class=\"wp-image-113777 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image2-3.png 1024w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image2-3-300x170.png 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2022\/11\/image2-3-768x434.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Disk Utility &gt; View &gt; Show All Devices<\/em><\/figcaption><\/figure>\n<\/div><p>2. Choose a disk &gt; click the <strong>First Aid<\/strong> button &gt; choose <strong>Run<\/strong>.<\/p><h3 class=\"wp-block-heading\">E. Delete the Backup Disk<\/h3><p>The last alternative is to delete the Time Machine backup disk.<\/p><p><strong>To delete the disk, perform the following steps:<\/strong><\/p><ol class=\"wp-block-list\">\n<li>Restart Disk Utility in <strong>Recovery Mode<\/strong>.<\/li>\n\n\n\n<li>Select the disk to be deleted.<\/li>\n\n\n\n<li>To complete the process, click <strong>Erase <\/strong>and follow the on-screen instructions.<\/li>\n<\/ol><p>After that, you&rsquo;ll need to restore your files. The most efficient solution is to use a specific restoring application, such as <a href=\"https:\/\/www.stellarinfo.com\/data-recovery-mac.php\" target=\"_blank\" rel=\"noreferrer noopener\">Stellar Data Recovery Professional for Mac<\/a>, to restore the data that was saved on disk.<\/p><h2 class=\"wp-block-heading\" id=\"recover-lost-data-using-stellar-data-recovery-professional\">Recover Lost Data Using Stellar Data Recovery Professional<\/h2><p>If you lost your data after the macOS update and issues with Time Machine, it is recommended to use Mac data recovery software to recover your deleted files. Professional data recovery software, such as Stellar Data Recovery Professional, can help you recover lost files on your Mac. It&rsquo;s a helpful tool that can help you recover your files no matter when you lose them.<\/p><p><strong>To recover lost data, follow the steps below:<\/strong><\/p><p>1. Download the Stellar Data Recovery Professional for Mac software.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/cloud.stellarinfo.com\/StellarDataRecoveryProfessional-B.dmg.zip\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/images\/free-download-Mac.png\" alt=\"\"><\/a><\/figure>\n<\/div><p>2. After the installation, you will be prompted to select the data you wish to recover.&nbsp;<\/p><p>3. Select the needed files or click on<strong> Recover Everything.<\/strong><\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/public\/image\/catalog\/screenshot\/mac-data-recovery-pro\/stellar-data-recovery-professional-for-mac-home-screen-1.png\" alt=\"Stellar Data Recovery Professional &gt; Select What To Recover\"><figcaption class=\"wp-element-caption\"><em>Stellar Data Recovery Professional &gt; Select What To Recover<\/em><\/figcaption><\/figure>\n<\/div><p>4. Then, decide where you want to recover the selected files from.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/public\/image\/catalog\/screenshot\/mac-data-recovery-pro\/stellar-data-recovery-professional-for-mac-select-location-2.png\" alt=\"Stellar Data Recovery &gt; Recover From\"><figcaption class=\"wp-element-caption\"><em>Stellar Data Recovery &gt; Recover From<\/em><\/figcaption><\/figure>\n<\/div><p>5. After the Stellar Data Recovery scan, you will be able to see the files that can be recovered and choose which ones you require.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/public\/image\/catalog\/screenshot\/mac-data-recovery-pro\/stellar-data-recovery-professional-for-mac-preview-3.png\" alt=\"Stellar Data Recovery &gt; Preview\"><figcaption class=\"wp-element-caption\"><em>Stellar Data Recovery &gt; Preview<\/em><\/figcaption><\/figure>\n<\/div><p>6. Finally, select the destination folder on your Mac and begin the recovery process.<\/p><h2 class=\"wp-block-heading\" id=\"other-problems-connected-with-time-machine-after-the-macos-update\">Other Problems Connected with Time Machine after the macOS Update<\/h2><h3 class=\"wp-block-heading\">A. Problems with Terminal<\/h3><p>Sometimes after the macOS update disallows usage of Time Machine utility command from Terminal. For example, the following code throws an error message when executed from Terminal: <strong>$ sudo tmutil listbackups.<\/strong><\/p><p>After verifying the admin password, the OS throws the error: &ldquo;<em>The operation could not be completed because tmutil could not access private application data on the backup disk<\/em>.&rdquo;<\/p><p>The message also suggests a resolution, &ldquo;<em>Use the Privacy tab in the Security and Privacy preference pane to add Terminal to the list of applications which can access Application Data<\/em>.&rdquo;<\/p><p>The resolution is acceptable for a single-user environment but undermines security in the case of multiple user accounts. Even non-admin account holders have the same access privilege as the admin.<\/p><p>In such a shared system, by using the data access rights, if any non-privileged account holder has accessed and deleted data like Mail, Time Machine backups, etc., then it can result in data loss.<\/p><h3 class=\"wp-block-heading\">B. Problems with Snapshot<\/h3><p>Another issue faced by Mac users after the OS upgrade&mdash;Time Machine backs up data to the drive but fails to complete the snapshot, saying, &ldquo;<em>There was an error while copying files.<\/em>&rdquo;<\/p><p>The issue persists irrespective of the number of trials to back up the data.&nbsp;<\/p><p><strong>To resolve this Time Machine backup issue, perform the following steps:<\/strong><\/p><ol class=\"wp-block-list\">\n<li>Go to <strong>Apple menu<\/strong> &gt; <strong>System Preferences<\/strong> &gt; <strong>Time Machine<\/strong>.<\/li>\n\n\n\n<li>Turn off Time Machine.<\/li>\n\n\n\n<li>Go to <strong>Macintosh HD<\/strong> &gt; <strong>Library <\/strong>&gt; <strong>Preferences <\/strong>folder.<\/li>\n\n\n\n<li>Delete <strong>com.apple.TimeMachine.plist<\/strong>.<\/li>\n\n\n\n<li>Start Time Machine from <strong>System Preferences<\/strong>.<\/li>\n\n\n\n<li>Add the external drive as a Time Machine backup destination.<\/li>\n\n\n\n<li>Create a backup to the drive.<\/li>\n<\/ol><p>The newly created backup file is now accessible.&nbsp;<\/p><h2 class=\"wp-block-heading\" id=\"wrapping-up\">Wrapping Up<\/h2><p>Most of the issues related to Time Machine are simple to resolve. Unless you have a severe case of file corruption, going through some quick fixes in this guide should help you get Time Machine to back up your Mac properly again. Also, do not forget about the alternative of recovering files on a Mac by installing special restoring software like <a href=\"https:\/\/www.stellarinfo.com\/data-recovery-mac.php\" target=\"_blank\" rel=\"noreferrer noopener\">Stellar Data Recovery<\/a> to ensure you can get all your files back.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Apple&rsquo;s built-in backup utility, Time Machine, is used to back up your&hellip; <a class=\"more-link\" href=\"https:\/\/www.stellarinfo.com\/blog\/time-machine-not-working-after-updating-macos\/\">Continue reading <span class=\"screen-reader-text\">Fix Time Machine Not Working after MacOS Update<\/span><\/a><\/p>\n","protected":false},"author":63,"featured_media":28606,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[244],"tags":[2193,3808,3809],"class_list":["post-28597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mac-data-recovery","tag-time-machine-not-backing-up","tag-time-machine-not-working","tag-time-machine-not-working-updating-macos","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fix Time Machine not Working after Updating macOS | Stellar<\/title>\n<meta name=\"description\" content=\"Learn the easy solutions in our guide on fixing the Time Machine not working after the macOS update and how to recover lost data.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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