If your computer does not function properly after a software or hardware upgrade you can restore it to a previous point in time.You should first remove the program or the hardware which is causing the problem. If you have updated a driver and that seems to be the problem it is very easy just to "rollback" to the earlier version of the driver.
To rollback the driver:
Click Start>All Programs>Accessories>System Tools>System Restore
Choose Restore My Computer to an Earlier Time. Click Next
The Calender will appear with the available restore points in bold text.
Choose your restore point and click on the Next button.
Your system will restart and will notify you if the System Restore is successful.
Most of the computer maintenance will be completed within your establishment. However, there may be an instance when a computer hardware component (i.e. computer tower) may be taken away for further analysis and fixing. A signed service form will be given to the client and it will be top priority to promptly return the hardware unit to the client.