Error+Code+0x80070005


 * Error Code 0x80070005 **


 * Fix Error Code 0x80070005 in Windows 7 Professional/Ultimate**

Even if you have validated your Windows 7 system as being genuine, when you log in you may see an error message saying Windows is not genuine and that your computer might not be running a counterfeit copy of Windows.

The desktop background will turn black This problem occurs because of a permissions problem in the registry key HKU\​S-1-5-20. The Network Service account must have full control and read permissions over that registry key.

To begin to resolve the problem:- you need to find which key is at fault, and then repair it. To do so, follow these steps:


 * 1) Press [**Windows Key**] + [**R**], type **RSOP.MSC** and click **OK**.
 * 2) Navigate to the following location: **Computer Configuration** > **Policies** > **Windows Settings** > **Security Settings** > **System Services**.
 * 3) Here you will see listed the group policy that is causing the problem. Make a note of the policy name.
 * 4) Press [**Windows Key**] + [**R**], type **GPEDIT.MSC** and click **OK**.
 * 5) Navigate to the group policy that you noted in step 3.
 * 6) Change the policy setting to **Not Defined** and close the Group Policy Editor.
 * 7) Press [**Windows Key**] + [**R**], type **GPUPDATE /force** and click **OK**.