When you try to validate Windows from http://www.microsoft.com/genuine/validate, Windows downloads an update 971033 , however when Windows tries to install the update, the update shows an error message that is mentioned above. Additionally, if you try to download the update KB971033 on your machine and run it manually, you may receive following error message:
The cryptographic operation failed due to a local security option setting.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing
You can find a key with the name ‘State’. By default the values is set to – ‘23c00’
State = 0x00023e00 - ‘Check for publisher’s certificate Revocation’ Unchecked
State = 0x00023c00 - ‘Check for publisher’s certificate Revocation’ Checked
The wrong value might result from an issue described in following Knowledge Base article:
982606 The value of the "State" registry item is changed after a Group Policy preferences setting is applied in Windows Server 2008, in Windows Vista or in Windows Server 2008 R2
Use one of the methods:
Method 1: Editing the Registry
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
- Start Registry Editor (Regedit.exe)
- Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing
- On the left side pane look for State key and double click to open it
- Change the Value data to 23c00 or 23e00 (Hexadecimal)
- Quit Registry Editor.
Method 2: Create a reg file
- Start Notepad.
- In Notepad, paste the following information.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing
- Save the file as a .reg file.
- Double-click the .reg file that you saved in step 3.
You would be able to validate your Windows successfully.
HKEY_USERS\S-1-5-18\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing
HKEY_USERS\.DEFAULT \Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing
Note: Ensure whatever value is updated for HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing, should be exact for above two registry.