Neviem moc anglicky, ale tu o tom nieco pisu:
1. Stop the Automatic Updates service. To do this, follow these steps: a. Click Start, click Run, type services.msc, and then click OK.
b. Right-click the Automatic Updates service, and then click Stop.
c. Minimize the Services snap-in.
2. Rename the SoftwareDistribution directory. To do this, follow these steps: a. Click Start, click Run, type cmd, and then click OK.
b. Type cd %windir%, and then press ENTER.
c. Type ren SoftwareDistribution SDTemp, and then press ENTER
d. Type exit, and then press ENTER .
http://support.microsoft.com/kb/910336/en-us