The registry fix wasn't imported successful.
Follow the instructions below. If anything is unclear, just ask first. Do NOT do anything else!
Click Start typ regedit in the searchbox and press enter.
Allow the program to run.
"Registry-editor" will open. On the left side browse to the key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class
Rightclick on it and select Permissions.
A new window opens, click the button Advanced.
A new window opens, select tab Owner.
Put a checkmark at Replace owner on subcontainers and objects
Select Administrators (...) then click Apply and OK.
In the list "Group or user names" select Administrators (...).
Next, put a checkmark to allow "Full Control" and click OK.
Close the program "Registry-editor".
Let me know if the above went successful or not.