Windows 7: SP1 Update Problem

I tried to update with SP1 but the computer seems to get stuck, it goes as far as downloading to 100% then just stays there.
There's also a few optional updates I want that pertain to my graphics card but that won't work either.
Any ideas?

Hi there,

Disable any Firewall / Antivirus software then try to apply the update again.

I guess that includes MSE which is all I have. Thanks.

Yup MSE and Windows Firewall as well. You may encounter temporary connection-related errors when you use Windows Update or Microsoft Update to install updates

Well OK, I disabled those for now and just updated SP1, so it worked.

But upon restarting I got an error, something about jraid.sys on a BSOD.
Restarted again and no error this time.

So maybe something was not set right, I'm running ahci for my disks if that matters.
I'll check in later if anything else develops with the other updates, there are 5 of them and just tried one for now.
Thanks.