{"id":706,"date":"2026-09-23T04:15:10","date_gmt":"2026-09-23T04:15:10","guid":{"rendered":"https:\/\/kb.powervps.net\/?p=706"},"modified":"2026-09-23T11:06:27","modified_gmt":"2026-09-23T11:06:27","slug":"how-to-disable-raid-1-mirroring-and-create-drive-d-in-windows","status":"publish","type":"post","link":"https:\/\/kb.powervps.net\/?p=706","title":{"rendered":"How to Disable RAID 1 Mirroring and Create Drive D: in Windows"},"content":{"rendered":"<h1 style=\"text-align: center;\">How to Disable RAID 1 Mirroring and Create Drive D: in Windows<\/h1>\n<p><a href=\"https:\/\/kb.powervps.net\/wp-content\/uploads\/2026\/09\/8e545981-3e43-45a5-b8cc-bf8b75540ccb.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-707\" src=\"https:\/\/kb.powervps.net\/wp-content\/uploads\/2026\/09\/8e545981-3e43-45a5-b8cc-bf8b75540ccb.png\" alt=\"\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/kb.powervps.net\/wp-content\/uploads\/2026\/09\/8e545981-3e43-45a5-b8cc-bf8b75540ccb.png 1536w, https:\/\/kb.powervps.net\/wp-content\/uploads\/2026\/09\/8e545981-3e43-45a5-b8cc-bf8b75540ccb-300x200.png 300w, https:\/\/kb.powervps.net\/wp-content\/uploads\/2026\/09\/8e545981-3e43-45a5-b8cc-bf8b75540ccb-1024x683.png 1024w, https:\/\/kb.powervps.net\/wp-content\/uploads\/2026\/09\/8e545981-3e43-45a5-b8cc-bf8b75540ccb-768x512.png 768w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/a><\/p>\n<p>This guide explains how to remove <strong>Disk 1<\/strong> from a Windows software RAID 1 (mirrored volume), format the released disk space, and create a separate <strong>D:<\/strong> drive.<\/p>\n<p><strong>Important:<\/strong> This guide applies to software RAID 1 configured in Windows Disk Management using dynamic disks.<\/p>\n<p><strong>Warning:<\/strong> Removing the mirror will delete the mirrored copy from the selected disk. Before proceeding, make sure that <strong>Disk 0<\/strong> contains the working copy of your operating system and data.<\/p>\n<h2>Step 1. Open Disk Management<\/h2>\n<p>Log in to the Windows server using an administrator account.<\/p>\n<p>Press <strong>Win + R<\/strong>, enter:<\/p>\n<p><code>diskmgmt.msc<\/code><\/p>\n<p>and click <strong>OK<\/strong>.<\/p>\n<p>You can also right-click the <strong>Start<\/strong> button and select <strong>Disk Management<\/strong>.<\/p>\n<h2>Step 2. Locate the RAID 1 mirrored volume<\/h2>\n<p>In <strong>Disk Management<\/strong>, locate the mirrored volume.<\/p>\n<p>The same volume should be displayed on both <strong>Disk 0<\/strong> and <strong>Disk 1<\/strong>.<\/p>\n<p>Before continuing, make sure that <strong>Disk 1<\/strong> is the disk you want to remove from the mirror.<\/p>\n<h2>Step 3. Remove Disk 1 from the mirror<\/h2>\n<p>Right-click the mirrored volume and select:<\/p>\n<p><strong>Remove Mirror&#8230;<\/strong><\/p>\n<p><strong>Do not select &#8220;Break Mirrored Volume&#8221;.<\/strong><\/p>\n<p>In the new window, select <strong>Disk 1<\/strong> and click <strong>Remove Mirror<\/strong>.<\/p>\n<p>Confirm the operation.<\/p>\n<p>Windows will keep the original volume on <strong>Disk 0<\/strong> and remove the mirrored copy from <strong>Disk 1<\/strong>.<\/p>\n<p>After the operation is complete, the space on <strong>Disk 1<\/strong> should appear as <strong>Unallocated<\/strong>.<\/p>\n<h2>Step 4. Create a new volume on Disk 1<\/h2>\n<p>Right-click the <strong>Unallocated<\/strong> space on <strong>Disk 1<\/strong> and select:<\/p>\n<p><strong>New Simple Volume&#8230;<\/strong><\/p>\n<p>The <strong>New Simple Volume Wizard<\/strong> will open.<\/p>\n<p>Click <strong>Next<\/strong>.<\/p>\n<p>If you want to use the entire disk, leave the maximum available volume size selected and click <strong>Next<\/strong>.<\/p>\n<h2>Step 5. Assign drive letter D:<\/h2>\n<p>Select:<\/p>\n<p><strong>Assign the following drive letter<\/strong><\/p>\n<p>and choose:<\/p>\n<p><strong>D:<\/strong><\/p>\n<p>Click <strong>Next<\/strong>.<\/p>\n<p>If the drive letter <strong>D:<\/strong> is already in use, you will need to free it first or select another available drive letter.<\/p>\n<h2>Step 6. Format the new volume<\/h2>\n<p>Select:<\/p>\n<p><strong>Format this volume with the following settings<\/strong><\/p>\n<p>Use the following settings:<\/p>\n<ul>\n<li><strong>File system:<\/strong> NTFS<\/li>\n<li><strong>Allocation unit size:<\/strong> Default<\/li>\n<li><strong>Volume label:<\/strong> Data<\/li>\n<li><strong>Perform a quick format:<\/strong> Enabled<\/li>\n<\/ul>\n<p>Click <strong>Next<\/strong> and then <strong>Finish<\/strong>.<\/p>\n<p>Windows will format the disk and create the new volume.<\/p>\n<h2>Step 7. Verify the new D: drive<\/h2>\n<p>Open <strong>File Explorer \u2192 This PC<\/strong>.<\/p>\n<p>You should now see the new drive:<\/p>\n<p><strong>Data (D:)<\/strong><\/p>\n<p>The disk is now ready to use as a separate storage drive.<\/p>\n<h2>Result<\/h2>\n<p>After completing these steps:<\/p>\n<ul>\n<li><strong>Disk 0<\/strong> remains your main Windows system disk.<\/li>\n<li>RAID 1 mirroring is disabled.<\/li>\n<li><strong>Disk 1<\/strong> is available as a separate disk.<\/li>\n<li>The new volume is formatted as <strong>NTFS<\/strong>.<\/li>\n<li>The disk is available in Windows as <strong>D:<\/strong>.<\/li>\n<\/ul>\n<p><strong>Important:<\/strong> After RAID 1 mirroring is disabled, the data on <strong>Disk 0<\/strong> is no longer protected by a mirrored copy. We recommend keeping regular backups of important data.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to Disable RAID 1 Mirroring and Create Drive D: in Windows This guide explains how to remove Disk 1 from a Windows software RAID 1 (mirrored volume), format the released disk space, and create a separate D: drive. Important: This guide applies to software RAID 1 configured in Windows Disk Management using dynamic disks. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[41,42,43],"class_list":["post-706","post","type-post","status-publish","format-standard","hentry","category-dedicated-servers","tag-disable-raid-1","tag-disable-raid1","tag-raid1"],"_links":{"self":[{"href":"https:\/\/kb.powervps.net\/index.php?rest_route=\/wp\/v2\/posts\/706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kb.powervps.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kb.powervps.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kb.powervps.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kb.powervps.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=706"}],"version-history":[{"count":2,"href":"https:\/\/kb.powervps.net\/index.php?rest_route=\/wp\/v2\/posts\/706\/revisions"}],"predecessor-version":[{"id":710,"href":"https:\/\/kb.powervps.net\/index.php?rest_route=\/wp\/v2\/posts\/706\/revisions\/710"}],"wp:attachment":[{"href":"https:\/\/kb.powervps.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kb.powervps.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kb.powervps.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}