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The show hidden files and folders was not working at all. If he selected the radio button “Show hidden files and folders”, and then press Ok .. the changes would just disappear upon opening the dialog again. It was probably some virus attack after which the Windows registry was not being updated properly. So here is what we can do to restore it back.

Show Hidden Files And Folders Not Working

1: Go to registry editor ( Start >> Run >> "regedit" )

2: Navigate to HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Advanced

3: In the right hand area, double click hidden and change the value to 1.

4: Check it in your tools menu if the changes have taken effect.

1: Go to registry editor ( Start >> Run >> "regedit" )

2: Navigate to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \CurrentVersion \ Explorer \ Advanced \ Folder \ Hidden \ SHOWALL

3: Look at the “CheckedValue” key… This should be a DWORD key. If it isn’t, delete the key.

4: Create a new key called “CheckedValue” as a DWORD (hexadecimal) with a value of 1.

5: The “Show hidden files & folders” check box should now work normally.