44 Advanced Troubleshooting
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Enabling System Restore
If you reinstall Windows XP with less than 200 MB of free hard-disk space available, System 
Restore is automatically disabled. To see if System Restore is enabled:
1
Click the 
Start
 button and click 
Control
 
Panel
. 
2
Click 
Performance and Maintenance
.
3
Click 
System
.
4
Click the 
System Restore 
tab.
5
Ensure that 
Turn off System Restore
 is unchecked.
Resolving Software and Hardware Incompatibilities
Windows XP IRQ conflicts occur if a device either is not detected during the operating system 
setup or is detected but incorrectly configured.
To check for conflicts on a computer running Windows XP:
1
Click the 
Start
 button and click 
Control Panel
. 
2
Click 
Performance and Maintenance
 and click 
System
. 
3
Click the 
Hardware
 tab and click 
Device Manager
.
4
In the 
Device Manager
 list, check for conflicts with the other devices.
Conflicts are indicated by a yellow exclamation point (
!
) beside the conflicting device or a red 
X
 if the device has been disabled.
5
Double-click any conflict to display the 
Properties
 window.
If an IRQ conflict exists, the 
Device
 status area in the 
Properties
 window reports the cards or 
devices that share the device's IRQ.
6
Resolve conflicts by reconfiguring the devices or removing the devices from the 
Device 
Manager
.
To use the Windows XP Hardware Troubleshooter:
1
Click the 
Start
 button and click 
Help and Support
.
2
Ty p e  
hardware troubleshooter
 in the 
Search
 field and click the arrow to start the search.
3
Click 
Hardware Troubleshooter
 in the 
Search Results
 list.
4
In the 
Hardware Troubleshooter
 list, click 
I need to resolve a hardware conflict on my 
computer
, and click 
Next
.