Make sure the Cryptographic service,denne tjeneste finder du under computeradministration>tjenester og programmer> tjenester se om den er startet.
Jeg løste problemet som du beskriver,med disse commandoer i komandopromt>
To get the updates to re-appear and/or to be listed as available again. Go to Start/Run/CMD and type in:
del /q "%SystemRoot%\System32\Catroot2\Edb.log. Then try again.
Can't download any updates and/or you receive an error message: Go to Start/Run and type in: regsvr32 wintrust.dll. If that doesn't help: Go to Start/Run and type in CMD. At the command prompt, type the following commands, pressing ENTER after each line:
net stop cryptsvc
ren %systemroot%\system32\catroot2 oldcatroot2 <disse komandoer.
net start cryptsvc
Then try the install again.
Another issue: When you use the Windows Update scan feature, the scan quickly reaches 100%, and then displays the "There are no updates available at this time" message. To correct this:
Verify that your computer's date and time are accurate and that the Internet Explorer language option is not empty.
To check the language setting in Internet Explorer:
1. Click "Tools" and then choose "Internet Options"
2. Click the "Languages" button
3. Make sure at least one language is listed in the "Language Options" dialog.
If the above hasn't helped: Go to Internet Explorer/Tools/Internet Options/Connections/Lan Settings and uncheck: Automatically detect settings.