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I have one partition which can be accessed through windows explorer which contains Microsoft and EFI folder

This is an image of the partition in explorer

I am now confused that can I delete the partition and I can't delete it from the windows partition manager. I have another partition also which is labelled as system and active

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  • For anyone to accurately answer this, please add the output of DiskPartLis Vol in a code box within your question. If that EFI partition is the only one, you cannot delete it, but if it's a secondary EFI partition, it's safe to delete only after verifying which EFI partition is actively being used, usually done via DiskPart. If you're using EFI boot, the EFI partition should not be listed as System, Active in Disk Management (it should be listed as EFI System Partition) - that's usually the details of a BIOS MBR boot partition.
    – JW0914
    Commented Jun 26, 2021 at 12:28

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This is the EFI system partition (ESP). You must not delete it or your system will no longer boot, requiring boot repairs. Luckily, Windows prevents you from modifying this partition if everything is working correctly.

Usually the ESP is not assigned a drive letter on Windows. How it got one on your system, who knows. First, you should try rebooting.

Then, you may also try mountvol e: /d from Command Prompt or PowerShell, both as Admin and without.

Lastly, you can also try with diskpart, though I’ve never seen that work.

  1. Run diskpart (it’s a command-line tool)
  2. Use list volume to find the FAT32 ESP, you need the number
  3. Use select volume X where X is the number you found
  4. Use remove letter=e

There’s also the possibility of using the registry, but we won’t look at that unless absolutely necessary.

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