Remove Linux from PC and assign memory to WINDOWS

There are users who want to remove Linux from PC and assign memory to WINDOWS. If that’s what you want, here’s how to do it!

1) Important Note — Backup & Recovery

Before deleting anything, make sure to back up the current BCD configuration and create a Windows recovery medium (if possible).

Create a folder for the backup, e.g.:

md C:\BCDBackup
bcdedit /export C:\BCDBackup\BCD.bak

This creates a copy of your Boot Configuration Data (BCD), which you can later restore with
bcdedit /import or other tools if needed.

2) Open Command Prompt as Administrator

• Open the Windows Start menu
• Type cmd
• Right-click Command Prompt → select Run as administrator

3) Display All Boot Entries

List all boot entries to find the one referring to LINUX:

bcdedit /enum all

For more detailed output:

bcdedit /v

Look for a section where description or device/path mentions LINUX.

Example:

Windows Boot Loader
-------------------
identifier              {current}
device                  partition=C:
path                    \Windows\system32\winload.exe
description             Windows 10

Real-mode Boot Sector
---------------------
identifier              {some-guid}
device                  partition=\Device\HarddiskVolumeX
description             LINUX

⚠️ Important: Write down the identifier (e.g. {9f0c...-...}) of the Linux entry — you’ll need it for deletion.

4) Double-Check Before Deleting

Make sure that:

• The description really says LINUX
• The identifier is correct

Never delete {bootmgr} or {current} — these are required for Windows to start!

5) Delete the LINUX Entry

Once you’re sure, delete the Linux boot entry with:

bcdedit /delete {IDENTIFIER}

Example:

bcdedit /delete {9f0c1234-...-abcd}

To force deletion without confirmation:

bcdedit /delete {9f0c1234-...-abcd} /f

6) Verify the Result

Check again to confirm the Linux entry is gone:

bcdedit /enum all

or

bcdedit /v

7) (Optional) Adjust Boot Order or Default Entry

If needed, set a new default boot entry (usually Windows):

1. Identify the correct Windows entry ({current}).
2. Set it as default:bcdedit /default {current}
3. Adjust boot menu timeout (optional):bcdedit /timeout 5

8) If Something Goes Wrong — Restore the Backup

If your PC fails to boot, try restoring the BCD backup you created:

bcdedit /import C:\BCDBackup\BCD.bak

If booting fails completely, boot from a Windows installation or recovery medium →
Repair your computer → Command Prompt, and try these commands:

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

⚠️ Note: On some systems, bootrec /fixboot might fail due to permission issues.
In that case, more detailed repair steps may be needed.

9) Special Cases (UEFI / Firmware)

On modern UEFI systems, additional boot entries (like “ubuntu”) may exist in UEFI’s NVRAM.
These entries don’t get deleted by bcdedit.

You can view them with:

bcdedit /enum firmware

To remove such entries, use:

• efibootmgr under Linux, or
• the UEFI/BIOS setup directly.

If you’re unsure whether your system uses UEFI or Legacy BIOS, let me know — I can guide you through the exact steps.

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