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How to hide an entire drive from prying eyes on Windows 10 | Windows Central

Posted by jpluimers on 2019/02/25

For my link archive: 3 ways to hide drive letters.


  1. Using diskman.msc (Disk Management) by removing drive letters or/and changing the mount point to be in another drive.
  2. Using regedit.exe (or other Registry Editor like reg.exe) for a bitmap of drive letters to add a value named [WayBackNoDrives to
    • globally to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
    • locally for the current user to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
  3. Using secpol.msc (Local Security Policy editor, or find it through gpedit.msc) to add a security policy similar to the registry.

Source: [WayBackHow to hide an entire drive from prying eyes on Windows 10 | Windows Central

After setting NoDrive you have to reboot (logoff/logon isn’t sufficient).

For the NoDrive bitmap: these list below has the values to add for each drive to hide, but it’s easier to use the [WayBackNT Drive Calculator – The ‘NoDrives’ Registry Key Value Calculator which calculates the Decimal version of the value needed.

  • A: 1,
  • B: 2,
  • C: 4,
  • D: 8,
  • E: 16,
  • F: 32,
  • G: 64,
  • H: 128,
  • I: 256,
  • J: 512,
  • K: 1024,
  • L: 2048,
  • M: 4096,
  • N: 8192,
  • O: 16384,
  • P: 32768,
  • Q: 65536,
  • R: 131072,
  • S: 262144,
  • T: 524288,
  • U: 1048576,
  • V: 2097152,
  • W: 4194304,
  • X: 8388608,
  • Y: 16777216,
  • Z: 33554432,
  • ALL: 67108863.


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