Does it have a firewall from someone beside Microsoft? McAfee's is famous for blocking windows updates/
Have you run the Windows Readiness Tool?
This is the one for 32 bit systems:
This is the one for 64 bit systems:
Let's see what errors we have:
Right click on (My) Computer and select Manage (Continue) Then click on the arrow in front of Event Viewer. Next Click on the arrow in front of Windows Logs Right click on System and Clear Log, Clear. Repeat for Application.
Reboot.
Start, All Programs, Accessories then right click on Command Prompt and Run as Administrator. Then type (with an Enter after each line).
(This will check your critical system files. Does this finish without complaint? IF it says it couldn't fix everything then:
Copy the next two lines:
findstr /c:"[SR]" \windows\logs\cbs\cbs.log > \windows\logs\cbs\junk.txt
notepad \windows\logs\cbs\junk.txt
Start, All Programs, Accessories, right click on Command Prompt and Run as Administrator, Continue. Right click and Paste or Edit then Paste and the copied line should appear.
Hit Enter. Copy and paste the text from notepad or if it is too big, just attach the file.)
1. Please download the Event Viewer Tool by Vino Rosso
and save it to your Desktop:
2. Right-click VEW.exe and Run AS Administrator
3. Under 'Select log to query', select:
* System
4. Under 'Select type to list', select:
* Error
* Warning
Then use the 'Number of events' as follows:
1. Click the radio button for 'Number of events'
Type 20 in the 1 to 20 box
Then click the Run button.
Notepad will open with the output log.
Please post the Output log in your next reply then repeat but select Application.
(Second time you run vew it will overwrite the first log so copy it to a reply or rename it first.)