bootmgr is conmpressed solution

Solutions to "BOOTMGR is Compressed" errors: Disable hard drive compression; Repair boot records: bootrec /fixmbr, bootrec /fixboot, bootrec /rebuildbcd; Rebuild boot configuration data: bcdedit /export, ren, bcdedit/ import; rebuild the master boot record: mbr2dos /install, mbr2dos /mbr.

How to solve the BOOTMGR is Compressed error

When the "BOOTMGR is Compressed" error appears when the computer starts, it means The computer cannot find Windows Boot Manager. This usually occurs when hard drive compression is enabled in the computer's BIOS settings.

Workaround:

1. Disable disk compression:

• Restart the computer and Enter BIOS setup.
• Locate the hard drive settings and disable the compression option (usually labeled "Compression" or "Advanced Disk Settings").
• Save changes and exit BIOS.

2. Repair the boot record:

• Create a Windows 10 installation USB or DVD.
• Boot the computer from the installation media.
• In the installation wizard, select "Repair your computer."
• Select "Troubleshoot" > "Advanced Options" > "Command Prompt".

• In the command prompt window, enter the following command and press Enter:

  <code>bootrec /fixmbr
  bootrec /fixboot
  bootrec /rebuildbcd</code>

3. Rebuild Boot Configuration Data (BCD ):

• If repairing the boot record does not work, you may need to rebuild the BCD.

• In the command prompt window, enter the following command and press Enter:

  <code>bcdedit /export c:\boot\bcd
  ren c:\boot\bcd bcd.old
  bcdedit /import c:\boot\bcd</code>

4. Rebuild the Master Boot Record (MBR ):

• If all else fails, you may need to rebuild the MBR.

• In the Command Prompt window, enter the following command and press Enter:

  <code>mbr2dos /install
  mbr2dos /mbr</code>

5. Restart your computer:

• After completing all steps, exit the command prompt and restart your computer. If all goes well, the computer should start normally.

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