I am on sp2, everything was fine after the upgrade for about 2 weeks.
Today I noticed after new logon that I don't have network icon on sys tray and my device manager is blank.
I do have internet but I don't see the lan in network connections.
Also My computer is slow to show disks and some other programs are slow in file operations.
I attempted restore to previous point but same problem. I also executed sfc /scannow. Opened New user, tried in Safe mode, checked that Plug&Play is in auto mode, checked msconfig - but nothing restore device manager to show devices.