Start the Administrative Tools utility in Control Panel.
Double-click Services.
Right-click Cryptographic Services, and then click Properties.
Click Automatic for Startup type, and then click Start.
Install Windows XP SP1 again. If the problem persists, go to Step 6.
Click Start, and then click Run.
In the Open box, type cmd, and then click OK.
At the command prompt, type the following commands, and then press ENTER after each line:
net stop cryptsvc
Was heißt das übersetzt? :[