Partition is visible in Disk Management and is assigned the letter E.

disk manager

But when you open File Explorer the drive E: doesn't show up.

file explorer

If I type E:\ in File Explorer's address bar, the content of the partition appears normally.

file explorer 2

Drive is not Hidden and Folder Options is set to show Hidden files.

This happened quite suddenly without major changes to the system. OS is Windows 7 x64.

Maybe a registry problem ?

  • Please provide the value of NoDrives at HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer in your registry – Daniel B Apr 21 '18 at 18:22
  • Thanks for your help. I didnt find NoDrives under HKLM\Software\Microsoft\Windows\Current Version\Explorer. Doing search there was a NoDrives in HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Policies\Explorer, but the value was 0. Another one in HKEY_USERS\S-1-5-21-848..\Software\Microsoft\Windows\Current Version\Policies\Explorer, but still 0. – alfred Apr 23 '18 at 7:00
  • The key under HKEY_USERS is probably the same you see under HKCU. Well, 0 means no hidden drives. Still, worth a try. :D – Daniel B Apr 23 '18 at 7:09

On that computer management screen, assign a new/different drive letter to that drive. It should work after the change, if it works, you can change back the drive letter latter.

  • Hi, thx for the idea. I assigned it the letter F it still not visible. – alfred Apr 23 '18 at 7:07

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