Cannot View Hidden Files And Folders. How to fix

As a result of viruses/trojans activity can be blocked showing hidden files. In Folder options can not take the “Show hidden files and folders” option. You choice the radio button for, then press Apply and OK, but hidden files do not be shown by windows explorer. The changes would just disappear upon opening the dialog again. Or more, no Folder Options in the Tools menu.

There are two methods to restore back the showing hidden files.
1. Manually.

• Click Start -> Run.
• Type regedit and press OK.
• In the left panel navigate to the following keys by expanding the + at left of each key at left:
  

  HKEY_CURRENT_USER
  Software
  Microsoft
  Windows
  CurrentVersion
  Policies
  Explorer

• In the right panel Right click NoFolderOptions, choose “delete”. OK the prompt.
• In the left panel navigate to the following keys by expanding the + at left of each key at left:
  

  HKEY_CURRENT_USER
  Software
  Policies
  Microsoft
  Internet Explorer
  Restrictions

• In the right panel Right click NoBrowserOptions, choose “delete”. OK the prompt.
• In the left panel navigate to the following keys by expanding the + at left of each key at left:
  

  HKEY_LOCAL_MACHINE
  SOFTWARE
  Microsoft
  Windows
  CurrentVersion
  Explorer
  Advanced
  Folder
  Hidden
  SHOWALL

• In the right panel Right click CheckedValue, choose “Edit”. This should be a DWORD key. If it isn’t, delete the key. Create a new key called “CheckedValue” as a DWORD (hexadecimal) with a value of 1.
• Reboot your PC.

2. Automatically.

• Open notepad and copy/paste the text in the quotebox below into it:
  

  REGEDIT4

  [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
  “NoFolderOptions”=-

  [HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions]
  “NoBrowserOptions”=-

  [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]
  “CheckedValue”=-

  [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]
  “CheckedValue”=dword:00000001

• Save this as fix.reg to your Desktop (remember to select Save as file type: All files in Notepad.).
• Double-click on the fix.reg. When it asks if you would like to merge the information, press the Yes button and then the OK button when it is done.
• Reboot your PC.

If none of the above methods work, then probably you infected with virus or trojan, that blocked of show hidden files. Then I would recommend you follow the instructions.

Related article: How to show hidden files in Windows.