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Restoring Your Operating System
 
Operating System 
Reinstallation
Before You Begin
If you are considering reinstalling the 
Microsoft
®
 Windows
®
 operating system to 
correct a problem with a newly installed driver, 
first try using Windows Device Driver Rollback. 
To roll back the device driver:
Windows XP 
Click 
1. 
Start
 Right‑click 
2. 
My Computer.
Click 
3. 
Properties
→ Hardware→ Device 
Manager.
Right‑click the device for which the new 
4. 
driver was installed, and click Properties.
 Click the 
5. 
Drivers tab
→ Roll Back Driver.
Windows Vista or Windows 7
 Click 
1. 
Start
 Right‑click 
2. 
Computer.
Click 
3. 
Properties
→ Device Manager.
Right‑click the device for which the new 
4. 
driver was installed, and click Properties.
 Click the 
5. 
Drivers tab
→ Roll Back Driver.
If Device Driver Rollback does not resolve the 
problem, then use System Restore to return your 
operating system to the operating state it was 
in before you installed the new device driver. 
See “System Restore” on page 46.
CAUTION: Before performing the 
installation, back up all data files on your 
primary hard drive. For conventional hard 
drive configurations, the primary hard 
drive is the first drive detected by the 
computer
.