{"id":75380,"date":"2024-06-03T17:31:02","date_gmt":"2024-06-03T12:01:02","guid":{"rendered":"http:\/\/198.58.113.91\/blog\/?p=75380"},"modified":"2024-06-03T18:03:33","modified_gmt":"2024-06-03T12:33:33","slug":"extend-windows-re-partition-powershell","status":"publish","type":"post","link":"https:\/\/www.winhelponline.com\/blog\/extend-windows-re-partition-powershell\/","title":{"rendered":"How to Extend the Windows RE Partition Using PowerShell"},"content":{"rendered":"

KB5034441 is a WinRE security update that patches the Winre.wim image. The Recovery partition needs 250 MB of free space for the KB5034441 update to install correctly.<\/p>\n

Almost every Windows 10 user has been affected by the KB5034441 error 0x80070643<\/a>. You can extend the Recovery partition using the diskpart<\/code> command-line. However, end-users might find that command-line procedure complicated.<\/p>\n

So, here’s a PowerShell script from Microsoft that automatically extends the Recovery partition by 250 MB.<\/p>\n

(Script source: Microsoft Learn<\/a>)<\/em><\/p>\n

Editor’s note:<\/strong> Before proceeding, please backup your Winre.wim image<\/a>. Also, as a general precaution<\/strong>, backup important files to an external drive before modifying the disk partitions, even though Microsoft’s PowerShell script (.PS1) makes appropriate validations before resizing the Recovery partition.<\/em><\/div>\n

Extend Windows RE Partition Using PowerShell<\/h2>\n
    \n
  1. First, restart Windows before you run the script. This is critical as there may be pending partition operations staged on your machine that must be finalized before the script can safely increase the WinRE partition size.<\/li>\n
  2. Then, open an admin<\/strong> PowerShell and run:\n
    md C:\\Winrefix\\backup<\/pre>\n
    \"create<\/li>\n
  3. Download winre.ps1<\/strong><\/a> (zipped), unzip and extract the script file to the C:\\winrefix<\/strong> folder.
    \n\"winre<\/li>\n
  4. In the admin PowerShell window, type:\n
    Set-ExecutionPolicy -ExecutionPolicy Unrestricted<\/pre>\n<\/li>\n
  5. Press Y<\/strong> when asked for confirmation.<\/li>\n
  6. Next, type the following commands:\n
    cd\\\n\ncd winrefix\n\n.\\winre.ps1<\/pre>\n
    The above executes the winre.ps1 script.<\/p>\n
    Sample output<\/h4>\n
    cmdlet winre.ps1 at command pipeline position 1\nSupply values for the following parameters:\n(Type !? for Help.)\nBackupFolder:<\/strong>\n<\/pre>\n<\/li>\n
  7. When prompted, type the backup folder path as follows, and press Enter:\n
    c:\\winrefix\\backup<\/pre>\n
    You’ll see an output similar to the following:<\/p>\n
    Sample output<\/h4>\n
    cmdlet winre.ps1 at command pipeline position 1\nSupply values for the following parameters:\n(Type !? for Help.)\nBackupFolder: c:\\winrefix\\backup\nStart time: 06\/03\/2024 14:47:32\nExamining the system...\nWindows RE status:         Enabled\nWindows RE location:       \\\\?\\GLOBALROOT\\device\\harddisk0\\partition3\\Recovery\\WindowsRE\nSystem directory: C:\\WINDOWS\\system32\nReAgent xml: C:\\WINDOWS\\system32\\Recovery\\ReAgent.xml\n\nCollecting OS and WinRE partition info...\nOS Disk: 0\nOS Partition: 2\nWinRE Partition: 3\nDisk PartitionStyle: MBR\nWinRE partition size info\n  Partition capacity: 650113024\n  Partition free space: 130801664\nWinRE Partition Offset: 209066131456\nWinRE Partition Type: Unknown\nOS partition size: 208960225280\nOS partition Offset: 105906176\nOS partition ends at: 209066131456\nWinRE partition starts at: 209066131456\n\nBackup Directory: [c:\\winrefix\\backup]\n\nVerifying if the WinRE partition needs to be extended or not...\n\nSummary of proposed changes\nWill shrink OS partition by 262144000\n  Current OS partition size: 208960225280\n  Target OS partition size after shrinking: 208698081280\nUnallocated space between OS and WinRE partition that will be used towards the new WinRE partition: 0\nWill extend WinRE partition size by 250MB\n  WinRE partition: Disk [0] Partition [3]\n  Current WinRE partition size: 650113024\n  New WinRE partition size:     912257024\nWinRE will be temporarily disabled before extending the WinRE partition and enabled automatically in the end\n\nThe contents of the old WinRE partition will be backed up to [c:\\winrefix\\backup]\n\nPlease reboot the device before running this script to ensure any pending partition actions are finalized\n\nWould you like to proceed? Y for Yes and N for No: Y<\/strong>\n<\/pre>\n
  8. Press Y<\/strong>\n
    You’ll see the output similar to the following:<\/div>\n
    Sample output<\/h4>\n
    Proceeding with changes...\n\nNote: To prevent unexpected results, please do not interrupt the execution or restart your system\n\nLoading [C:\\WINDOWS\\system32\\Recovery\\ReAgent.xml] ...\nClearing stage location info...\nSaving changes to [C:\\WINDOWS\\system32\\Recovery\\ReAgent.xml]...\nDisabling WinRE...\nREAGENTC.EXE: Operation Successful.\n\nVerifying that WinRE wim exists in downlevel at default location\nPerforming repartition to extend the WinRE partition ...\nShrinking the OS partition to create a larger WinRE partition\nResizing the OS partition to: [208698081280]...\nTarget partition size: 208698081280\nSize of OS partition after shrinking: 208698081280\n\nCopying content on WinRE partition from [\\\\?\\Volume{098cc206-0000-0000-0000-50ad30000000}\\] to [c:\\winrefix\\backup]...\nCopying [\\\\?\\Volume{098cc206-0000-0000-0000-50ad30000000}\\recovery] to [c:\\winrefix\\backup\\recovery]...\nBackup completed\n\nDeleting WinRE partition: Disk [0] Partition [3]...\n\nCreating new WinRE partition...\nTarget size: 912257024\nCreating temporary diskpart script to create Recovery partition on MBR disk...\nTemporary diskpart script file: C:\\Users\\Ramesh\\AppData\\Local\\Temp\\ExtendWinRE_MBR_PowershellScript.txt\nExecuting diskpart script...\nDiskpart script executed successfully\nDeleting temporary diskpart script file...\nNew Partition index: 3\nRe-enabling WinRE...\nREAGENTC.EXE: Operation Successful.\n\n\nWinRE Information:\nWindows RE status:         Enabled\nWindows RE location:       \\\\?\\GLOBALROOT\\device\\harddisk0\\partition3\\Recovery\\WindowsRE\nWinRE Partition Index: 3\n  Partition capacity: 912257024\n  Partition free space: 392609792\n\nOS Information:\nOS partition size: 208698081280\nOS partition Offset: 105906176\nEnd time: 06\/03\/2024 14:48:56\n\nThe contents of the old WinRE partition has been backed up to [c:\\winrefix\\backup]\n\nSuccessfully completed the operation<\/strong>\n<\/pre>\n<\/li>\n
  9. To revert the script execution policy to default, type the following command in PowerShell:\n
    Set-ExecutionPolicy -ExecutionPolicy Restricted<\/pre>\n<\/li>\n
  10. Press Y<\/strong> when asked for confirmation.<\/li>\n<\/ol>\n
    That’s it. The PowerShell script has successfully resized the Recovery partition by shrinking the OS partition. The Recovery partition should now be 250 MB larger than it was before.<\/p>\n
    \n
    Screenshots<\/h3>\n
    Disk Management<\/strong><\/p>\n
    Before resizing the Recovery partition:<\/p>\n
    \"recovery<\/p>\n
    After extending the partition by 250 MB:<\/p>\n
    \"recovery<\/p>\n
    PowerShell window<\/strong><\/p>\n
    \"recovery<\/p>\n
    \"recovery<\/p>\n
    (Right-click on each image and click “Open in a new tab” to read the output in those screenshots.)<\/p>\n
    \n
    More information<\/h3>\n