I have a Windows 7 pro Dell Volstro desktop that freezes/locks up. The mouse won't move nor the keyboard will work. The person has Adobe, Coreldraw, Quickbooks, Outlook 2010 and IE open at the time. It happens randomly and the system needs to be powered off to get it going again.
The user can go to another deskkop on the network or via SBS 2008 Remote workspace and work all day with no issues.
Dell HW diagnostics: passed
Tested keyboard mouse on another workstation: works
Windows 7 drivers are up to date
Bios is up to date
No errors in the event log related to this.
no viruses or malware
Windows patches are up to date.
repaired Office 2010 to eliminate Outlook 2010 locking up.
I did try the keyboard/mouse in different USB ports: It seemed to work fine but the next day it locked up after 30 mins.