{"id":552,"date":"2023-02-06T06:00:57","date_gmt":"2023-02-06T06:00:57","guid":{"rendered":"https:\/\/www.sysgeeker.com\/blog\/?p=552"},"modified":"2023-02-06T06:01:36","modified_gmt":"2023-02-06T06:01:36","slug":"how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos","status":"publish","type":"post","link":"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html","title":{"rendered":"How to Fix The &#8216;untrusted_cert_title&#8217; error When Reinstalling macOS?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_31 counter-hierarchy counter-disc\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#Why_Does_My_Mac_Say_UNTRUSTED_CERT_TITLE_When_Reinstalling_macOS\" title=\"Why Does My Mac Say UNTRUSTED CERT TITLE When Reinstalling macOS?\">Why Does My Mac Say UNTRUSTED CERT TITLE When Reinstalling macOS?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#How_to_Fix_The_untrusted_cert_title_error_When_Reinstalling_macOS\" title=\"How to Fix The &#8216;untrusted_cert_title&#8217; error When Reinstalling macOS?\">How to Fix The &#8216;untrusted_cert_title&#8217; error When Reinstalling macOS?<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#Re-enable_SIP_System\" title=\"Re-enable SIP System\">Re-enable SIP System<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#Disable_SIP_System\" title=\"Disable SIP System\">Disable SIP System<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#Changing_System_Date_and_Time_from_Mac_Settings\" title=\"Changing System Date and Time from Mac Settings\">Changing System Date and Time from Mac Settings<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#Reset_the_System_Management_Controller_SMC\" title=\"Reset the System Management Controller (SMC)\">Reset the System Management Controller (SMC)<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#How_to_Fix_UNTRUSTED_CERT_TITLE_during_MacOS_Recovery\" title=\"How to Fix UNTRUSTED_CERT_TITLE during MacOS Recovery\">How to Fix UNTRUSTED_CERT_TITLE during MacOS Recovery<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\/#Summarize\" title=\"Summarize\">Summarize<\/a><\/li><\/ul><\/nav><\/div>\n<p>The &#8216;untrusted_cert_title&#8217; error occurs when you are reinstalling macOS. This error message indicates that the security certificate used to verify the integrity of the macOS installation package is not trusted. It is important to address this issue to ensure your system&#8217;s security. This article will provide you with instructions on how to fix the &#8216;untrusted_cert_title&#8217; error when reinstalling macOS.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Does_My_Mac_Say_UNTRUSTED_CERT_TITLE_When_Reinstalling_macOS\"><\/span>Why Does My Mac Say UNTRUSTED CERT TITLE When Reinstalling macOS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The \u2018Untrusted_Cert_Title\u2019 error is caused by an expired or corrupt certificate in the System Integrity Protection (SIP) system. This system is designed to protect your Mac\u2019s system files and settings from unauthorized modif<br \/>\nications. When the SIP system detects an expired or corrupted certificate, it prevents your Mac from connecting to the installation server and therefore prevents the installation process from completing.<\/p>\n<p>The \u2018Untrusted_Cert_Title\u2019 error can be caused by incorrect system date and time settings. This can happen if the date and time on the computer have been manually set to a date\/time that is earlier than the date\/time of the current macOS version. This can cause the SIP system to become out of sync, which will result in the \u2018Untrusted_Cert_Title\u2019 error message.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Fix_The_untrusted_cert_title_error_When_Reinstalling_macOS\"><\/span>How to Fix The &#8216;untrusted_cert_title&#8217; error When Reinstalling macOS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Re-enable_SIP_System\"><\/span>Re-enable SIP System<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Step 1. Restart your Mac and hold \u201cCommand + R\u201d when the startup chime sounds. This will open the MacOS recovery environment.<\/p>\n<p>Step 2. In the macOS recovery environment, select \u201cUtilities\u201d on the top menu bar and choose \u201cTerminal.\u201d<\/p>\n<p>Step 3. In the terminal window, type \u201ccsrutil disable\u201d and press \u201cEnter.\u201d This will disable the System Integrity Protection (SIP) system.<\/p>\n<p>Step 4. Quit the terminal and select \u201cReinstall macOS\u201d from the macOS recovery environment.<\/p>\n<p>Step 5. Follow the onscreen instructions to reinstall macOS.<\/p>\n<p>Step 6. When the installation has finished, restart your Mac and hold \u201cCommand + R\u201d when the startup chime sounds.<\/p>\n<p>Step 7. In the macOS recovery environment, select \u201cUtilities\u201d on the top menu bar and choose \u201cTerminal.\u201d<\/p>\n<p>Step 8. In the terminal window, type \u201ccsrutil enable\u201d and press \u201cEnter.\u201d This will re-enable the System Integrity Protection (SIP) system.<\/p>\n<p>Step 9. Quit the terminal and restart your Mac. The \u2018Untrusted_Cert_Title\u2019 error should now be fixed.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Disable_SIP_System\"><\/span>Disable SIP System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The first step to resolving this issue is to temporarily disable the SIP system. To do this, you will need to restart your Mac in Recovery Mode by pressing Command + R when you start up your device.<\/p>\n<p>Then open the \u201cTerminal\u201d application and type in \u201ccsrutil disable\u201d. This will temporarily disable the SIP system and allow you to proceed with reinstalling macOS.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Changing_System_Date_and_Time_from_Mac_Settings\"><\/span>Changing System Date and Time from Mac Settings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If you experience the \u2018untrusted_cert_title\u2019 error when reinstalling macOS, you can try changing the system date and time. To do this, open System Preferences and go to the Date &amp; Time tab. Make sure that the option to set the date and time automatically is unchecked. Then adjust the date and time to a few days in the past. After that, click the lock icon and enter your administrator password to save the changes. Then try reinstalling macOS again.<\/p>\n<p>If the above method does not work, you can also try changing the system date and time from the Terminal. To do this, open the Terminal app and type in the following command:<\/p>\n<blockquote><p><strong>sudo date -s \"<strong>YYYY-MM-DD HH:MM:SS<\/strong>\"<\/strong><\/p><\/blockquote>\n<p>Replace YYYY-MM-DD HH:MM:SS with the exact date and time you want to set. Then press enter and enter your administrator password when prompted. After that, try reinstalling macOS again.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reset_the_System_Management_Controller_SMC\"><\/span>Reset the System Management Controller (SMC)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Resetting the System Management Controller (SMC) can help resolve the &#8216;untrusted_cert_title&#8217; error.<br \/>\n1. Shut down your Mac.<br \/>\n2. On your Mac notebook, press and hold the left side Shift + Control + Option keys and the power button at the same time.<br \/>\n3. Release all the keys and the power button at the same time.<br \/>\n4. Press the power button again to turn on your Mac.<br \/>\n5. Try reinstalling macOS again.<\/p>\n<p>If resetting the SMC doesn&#8217;t work, you can try resetting the PRAM\/NVRAM:<\/p>\n<p>1. Shut down your Mac.<br \/>\n2. Press and hold the Command + Option + P + R keys immediately after pressing the power button.<br \/>\n3. Hold the keys until the computer restarts and you hear the startup sound for the second time.<br \/>\n4. Release the keys.<br \/>\n5. Try reinstalling macOS again.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Fix_UNTRUSTED_CERT_TITLE_during_MacOS_Recovery\"><\/span>How to Fix UNTRUSTED_CERT_TITLE during MacOS Recovery<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>MacOS Recovery is a powerful tool that enables you to repair or reinstall MacOS on your Mac computer. However, if your Mac has encountered an issue with a certificate that is not trusted, it can prevent you from completing the recovery process. In this guide, we&#8217;ll explain how to remove an untrusted certificate during MacOS Recovery.<\/p>\n<ul>\n<li>Start MacOS Recovery.<\/li>\n<li>Open the Utilities menu and select Terminal.<\/li>\n<li>Type the following command in the terminal window: \u201csudo \/usr\/bin\/security delete-certificate -Z [certificate_hash]\u201d<\/li>\n<li>Replace [certificate_hash] with the hash of the untrusted certificate. You can find the hash of the certificate by opening the Keychain Access app, finding the certificate in question, and then right-clicking on it and selecting \u201cGet Info\u201d. The hash is located in the \u201cFingerprint\u201d field.<\/li>\n<li>Enter your administrator password when prompted.<\/li>\n<li>Restart your Mac and try to complete the MacOS recovery process again.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summarize\"><\/span>Summarize<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The &#8216;untrusted_cert_title&#8217; error occurs when you attempt to reinstall macOS from an untrusted source. This error can prevent you from reinstalling macOS, so it is important to resolve the issue as soon as possible. Fortunately, there are a few steps you can take to fix the &#8216;untrusted_cert_title&#8217; error when reinstalling macOS.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The &#8216;untrusted_cert_title&#8217; error occurs when you are reinstalling macOS. This error message indicates that the security certificate used to verify the integrity of the macOS installation package is not trusted. It is important to address this issue to ensure your system&#8217;s security. This article will provide you with instructions on how to fix the &#8216;untrusted_cert_title&#8217; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Fix The &#039;untrusted_cert_title&#039; error When Reinstalling macOS?<\/title>\n<meta name=\"description\" content=\"The &#039;untrusted_cert_title&#039; error occurs when you are reinstalling macOS. This error message indicates that the security certificate used to verify the integrity of the macOS installation package is not trusted.\" \/>\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.sysgeeker.com\/blog\/how-to-fix-the-untrusted_cert_title-error-when-reinstalling-macos.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Fix The &#039;untrusted_cert_title&#039; error When Reinstalling macOS?\" \/>\n<meta property=\"og:description\" content=\"The &#039;untrusted_cert_title&#039; error occurs when you are reinstalling macOS. 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