{"id":87257,"date":"2020-11-11T01:19:49","date_gmt":"2020-11-11T01:19:49","guid":{"rendered":"https:\/\/www.isunshare.com\/blog\/?p=87257"},"modified":"2024-04-25T08:46:51","modified_gmt":"2024-04-25T08:46:51","slug":"bitlocker-failed-to-encrypt-c-drive-in-windows-10-how-to-fix","status":"publish","type":"post","link":"https:\/\/www.isunshare.com\/blog\/bitlocker-failed-to-encrypt-c-drive-in-windows-10-how-to-fix\/","title":{"rendered":"BitLocker Failed to Encrypt C Drive in Windows 10 | How to Fix"},"content":{"rendered":"<p>There are times when we try to <a href=\"https:\/\/www.isunshare.com\/windows-10\/how-to-encrypt-c-drive-with-bitlocker-in-windows-10.html\">encrypt C drive with BitLocker<\/a>, an error message will pop up prompting that &#8220;<em>This device can&#8217;t use a Trusted Platform Module.<\/em> Your administrator must set the &#8220;Allow BitLocker without a compatible TPM&#8221; option in the &#8220;Require additional authentication at startup&#8221; policy for OS volumes.&#8221; If you feel confused with this issue, you are in the right place! Here you can learn <a href=\"https:\/\/www.isunshare.com\/blog\/bitlocker-failed-to-encrypt-c-drive-in-windows-10-how-to-fix\/\"><strong>how to fix BitLocker failed to encrypt C drive in Windows 10<\/strong><\/a>. So, just follow the steps below.<\/p>\n<ul>\n<li><a href=\"#1\">1. Fix the Issue with Local Group Policy Editor<\/a><\/li>\n<li><a href=\"#2\">2. Alternative Method&#8211;Enable BitLocker to C drive via CMD <\/a><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"437\" class=\"size-full wp-image-87253 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/bitlocker-failed-to-encrypt-c-drive-in-windows-10.jpg\" alt=\"bitlocker failed to encrypt c drive in windows 10\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/bitlocker-failed-to-encrypt-c-drive-in-windows-10.jpg 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/bitlocker-failed-to-encrypt-c-drive-in-windows-10-300x193.jpg 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/p>\n<h2 id=\"1\">1. Fix the Issue with Local Group Policy Editor<\/h2>\n<p><strong>Step 1<\/strong>: Press <strong>Windows key<\/strong> + <strong>R<\/strong> to open a Run box. Then type<em> gpedit.msc<\/em> and hit <strong>Enter<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"399\" height=\"206\" class=\"size-full wp-image-87254 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/open-policy-editor-window.png\" alt=\"open policy editor window\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/open-policy-editor-window.png 399w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/open-policy-editor-window-300x155.png 300w\" sizes=\"auto, (max-width: 399px) 100vw, 399px\" \/><\/p>\n<p><strong>Step 2<\/strong>: In the left pane, navigate to <strong>Computer Configuration<\/strong> &gt; <strong>Administrative Templates<\/strong> &gt; <strong>Windows Components<\/strong> &gt; <strong>BitLocker Drive Encryption<\/strong> &gt;<strong> Operating System Drives<\/strong>.<\/p>\n<p><strong>Step 3<\/strong>: In the right pane, double-click <strong>Require additional authentication at startup<\/strong> policy.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"688\" height=\"547\" class=\"size-full wp-image-87255 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/require-additional-authentication-at-startup.png\" alt=\"require additional authentication at startup\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/require-additional-authentication-at-startup.png 688w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/require-additional-authentication-at-startup-300x239.png 300w\" sizes=\"auto, (max-width: 688px) 100vw, 688px\" \/><\/p>\n<p><strong>Step 4<\/strong>: On the popup window, select the radio button of <strong>Enabled<\/strong> and then check the box of <strong>Allow BitLocker without a compatible TPM<\/strong>. Finally, click <strong>OK<\/strong> button to save the changes.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"686\" height=\"633\" class=\"size-full wp-image-87256 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/setting.png\" alt=\"setting\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/setting.png 686w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2020\/11\/setting-300x277.png 300w\" sizes=\"auto, (max-width: 686px) 100vw, 686px\" \/><\/p>\n<h2 id=\"2\">2. Alternative Method&#8211;Enable BitLocker to C drive via CMD<\/h2>\n<p>If you still fail to encrypt the C drive with the built-in BitLocker function in Windows 10 Pro or higher edition, you can try the below alternative method to encrypt the C drive with BitLocker.<\/p>\n<p><strong>Preparation: <\/strong><\/p>\n<ol>\n<li>Make sure Require additional authentication at startup is enabled on your computer. You can check the detailed steps in the first part.<\/li>\n<li>Make sure TPM is enabled. You can run command line: <strong><em>wmic \/namespace:\\\\root\\cimv2\\security\\microsofttpm path win32_tpm get * \/format:textvaluelist.xsl<\/em> <\/strong>to have a check.<\/li>\n<\/ol>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-whether-tpm-is-enabled-via-cmd.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"315\" class=\"size-full wp-image-126732 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-whether-tpm-is-enabled-via-cmd.png\" alt=\"check whether TPM is enabled via cmd\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-whether-tpm-is-enabled-via-cmd.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-whether-tpm-is-enabled-via-cmd-300x139.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 1:<\/strong> <a href=\"https:\/\/www.isunshare.com\/windows-10\/2-ways-to-run-command-prompt-as-administrator-in-win-10.html\">Open Command Prompt on your computer and run it as administrator<\/a>.<\/p>\n<p><strong>Step 2:<\/strong> Run the command lines: <strong><em>manage-bde \u2013on C: -usedspaceonly -skiphardwaretest -tpmandpin<\/em><\/strong> to enable BitLocker encryption for your C drive. Also, set the encryption mode as only encrypt the used space. Besides, you add the trusted TPM and PIN protector to the C drive.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enable-bitlocker-to-c-drive-via-cmd.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"315\" class=\"size-full wp-image-126733 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enable-bitlocker-to-c-drive-via-cmd.png\" alt=\"enable BitLocker to C drive via cmd\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enable-bitlocker-to-c-drive-via-cmd.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enable-bitlocker-to-c-drive-via-cmd-300x139.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 3:<\/strong> Enter the PIN you want to use to protect the drive. After that, confirm it.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-pin-and-confirm-it.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"167\" class=\"size-full wp-image-126735 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-pin-and-confirm-it.png\" alt=\"enter PIN and confirm it\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-pin-and-confirm-it.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-pin-and-confirm-it-300x74.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 4:<\/strong> The BitLocker encryption is attached to the C drive. You can see that Used Space Only encryption is now in progress.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/used-space-only-encryption-is-in-progress.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"318\" class=\"size-full wp-image-126739 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/used-space-only-encryption-is-in-progress.png\" alt=\"Used space only encryption is in progress\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/used-space-only-encryption-is-in-progress.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/used-space-only-encryption-is-in-progress-300x140.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 5:<\/strong> Run the command lines to add a recovery key protector to your C drive: <strong><em>manage-bde -protectors -add C: -recoverypassword<\/em><\/strong>.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/run-command-to-add-recovery-key-protector.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"318\" class=\"size-full wp-image-126737 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/run-command-to-add-recovery-key-protector.png\" alt=\"run command to add recovery key protector\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/run-command-to-add-recovery-key-protector.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/run-command-to-add-recovery-key-protector-300x140.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 6:<\/strong> The recovery key is added successfully.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/recovery-key-is-added-successfully.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"369\" class=\"size-full wp-image-126736 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/recovery-key-is-added-successfully.png\" alt=\"recovery key protector is added successfully\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/recovery-key-is-added-successfully.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/recovery-key-is-added-successfully-300x163.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 7:<\/strong> Run the command line to back up your recovery password: <strong><em>manage-bde -protectors -get c: -id {C5C58F61-7B2C-46F5-87CB-BA20C50A2195} &gt; D:\\RecoveryPassword_{C5C58F61-7B2C-46F5-87CB-BA20C50A2195}.txt<\/em><\/strong>. You can change the drive D:\\ to any other location on your computer.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/save-the-recovery-key.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"385\" class=\"size-full wp-image-126738 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/save-the-recovery-key.png\" alt=\"save the recovery key to your computer\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/save-the-recovery-key.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/save-the-recovery-key-300x170.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 8:<\/strong> The recovery key is backed up successfully. You can check it in the destination location.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-the-recovery-key-file.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"229\" class=\"size-full wp-image-126731 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-the-recovery-key-file.png\" alt=\"check the recovery key file\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-the-recovery-key-file.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/check-the-recovery-key-file-300x101.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p><strong>Step 9:<\/strong> Up to now, you have successfully encrypted the C drive with BitLocker. You can restart the computer and then it will ask you to enter the BitLocker PIN to unlock the drive.<\/p>\n<p><a href=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-bitlocker-pin-to-unlock-c-drive.png\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"205\" class=\"size-full wp-image-126734 aligncenter\" src=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-bitlocker-pin-to-unlock-c-drive.png\" alt=\"enter BitLocker PIN to unlock C drive\" srcset=\"https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-bitlocker-pin-to-unlock-c-drive.png 680w, https:\/\/www.isunshare.com\/blog\/wp-content\/uploads\/2024\/04\/enter-bitlocker-pin-to-unlock-c-drive-300x90.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/a><\/p>\n<p>That&#8217;s all. In the end, the issue that BitLocker Drive Encryption cannot be enabled on the operating system drive has been solved. You can encrypt the C drive with BitLocker in Windows 10.<\/p>\n<p><strong>Tips<\/strong>: If you intend to encrypt a hard drive with BitLocker in the Windows operating system, <a href=\"https:\/\/www.isunshare.com\/bitlocker-genius\/for-windows.html\" target=\"_blank\" rel=\"noopener\">iSunshare BitLocker Genius for Windows<\/a> is a trustworthy and user-friendly disk encryption tool that can help you easily encrypt or decrypt a drive with BitLocker. In addition, it allows you to <a href=\"https:\/\/www.isunshare.com\/computer\/how-to-enable-bitlocker-on-windows-11-10-home.html\">enable BitLocker to encrypt a drive in Windows 11\/10 Home<\/a> edition.<\/p>\n<hr \/>\n<p><strong>Related Articles:<\/strong><\/p>\n<ol>\n<li><a href=\"https:\/\/www.isunshare.com\/blog\/remove-bitlocker-from-pen-drive-with-or-without-recovery-key\/\">Easy to Remove BitLocker Encryption from Pen Drive with or without Recovery Key<\/a><\/li>\n<li><a href=\"https:\/\/www.isunshare.com\/windows-10\/how-to-password-protect-a-usb-flash-drive-with-bitlocker-on-windows-10.html\">How to Password Protect a USB Flash Drive with BitLocker on Windows 10<\/a><\/li>\n<li><a href=\"https:\/\/www.isunshare.com\/windows-10\/4-ways-to-remove-or-disable-bitlocker-encryption-on-windows-10.html\">4 Ways to Remove or Disable BitLocker Drive Encryption<\/a><\/li>\n<li><a href=\"https:\/\/www.isunshare.com\/windows-10\/how-to-encrypt-c-drive-with-bitlocker-in-windows-10.html\">How to Encrypt System Drive with BitLocker in Windows 10<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>There are times when we try to encrypt C drive with BitLocker, an error message will pop up&#8230;<\/p>\n","protected":false},"author":1,"featured_media":87253,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[214,156],"tags":[],"class_list":["post-87257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computer","category-windows-10"],"_links":{"self":[{"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/posts\/87257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/comments?post=87257"}],"version-history":[{"count":5,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/posts\/87257\/revisions"}],"predecessor-version":[{"id":126742,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/posts\/87257\/revisions\/126742"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/media\/87253"}],"wp:attachment":[{"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/media?parent=87257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/categories?post=87257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.isunshare.com\/blog\/wp-json\/wp\/v2\/tags?post=87257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}