When I boot up all I get is a blank desktop. No icons or anything at all. If I press CTRL +ALT+ DEL Keys,I can open the task manager, but am still unable to bring up a desktop.
To resove this issue you have to create a new Explorer.exe process from Task Manager.
Open Registry Editor and see if shell ="explorer.exe" .
Navigate to the following location:-[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
Explorer.exe is used for the Windows desktop GUI.
Related KB Article:-
Shells Other Than Explorer.exe Replaced on Installation or Upgrade