pc shutting down

[router]

my pc keeps shutting down and restarting and telling me it shut down improperly on a black screen with the reboot options.
here is what events veiwer says if it helps any
System
-Provider[ Name] Microsoft-Windows-Diagnostics-Performance[ Guid] {cfc18ec0-96b1-4eba-961b-622caee05b0a}
EventID100Version1Level2Task4002Opcode34Keywords0x 8000000000010000-TimeCreated[ SystemTime] 2008-08-17T22:07:00.746Z
EventRecordID1735-Correlation[ ActivityID] {00000000-F6C8-0000-6D6E-D434B500C901}
-Execution[ ProcessID] 1856[ ThreadID] 2492
ChannelMicrosoft-Windows-Diagnostics-Performance/OperationalComputer-Security[ UserID] S-1-5-19

-EventData
BootTsVersion2BootStartTime2008-08-17T22:04:23.218ZBootEndTime2008-08-17T22:06:54.105ZSystemBootInstance189UserBootInsta nce164BootTime91384MainPathBootTime38084BootKernel InitTime291BootDriverInitTime3616BootDevicesInitTi me5655BootPrefetchInitTime58096BootPrefetchBytes47 7069312BootAutoChkTime0BootSmssInitTime9051BootCri ticalServicesInitTime2781BootUserProfileProcessing Time2572BootMachineProfileProcessingTime1073BootEx plorerInitTime6966BootNumStartupApps14BootPostBoot Time53300BootIsRebootAfterInstallfalseBootRootCaus eStepImprovementBits1024BootRootCauseGradualImprov ementBits0BootRootCauseStepDegradationBits0BootRoo tCauseGradualDegradationBits0BootIsDegradationfals eBootIsStepDegradationfalseBootIsGradualDegradatio nfalseBootImprovementDelta0BootDegradationDelta0Bo otIsRootCauseIdentifiedtrue
double dutch to me!
have done all security scans and no probs anyone any clues.
os is vista home basic

[Sapphire2803]

Have you installed any new software recently? Vista can be funny like that.
Bluetooth software can be the worst... especially blue soleil.

[blueivy]

my pc keeps shutting down and restarting and telling me it shut down improperly on a black screen with the reboot options.
here is what events veiwer says if it helps any
System
-Provider[ Name] Microsoft-Windows-Diagnostics-Performance[ Guid] {cfc18ec0-96b1-4eba-961b-622caee05b0a}
EventID100Version1Level2Task4002Opcode34Keywords0x 8000000000010000-TimeCreated[ SystemTime] 2008-08-17T22:07:00.746Z
EventRecordID1735-Correlation[ ActivityID] {00000000-F6C8-0000-6D6E-D434B500C901}
-Execution[ ProcessID] 1856[ ThreadID] 2492
ChannelMicrosoft-Windows-Diagnostics-Performance/OperationalComputer-Security[ UserID] S-1-5-19

-EventData
BootTsVersion2BootStartTime2008-08-17T22:04:23.218ZBootEndTime2008-08-17T22:06:54.105ZSystemBootInstance189UserBootInsta nce164BootTime91384MainPathBootTime38084BootKernel InitTime291BootDriverInitTime3616BootDevicesInitTi me5655BootPrefetchInitTime58096BootPrefetchBytes47 7069312BootAutoChkTime0BootSmssInitTime9051BootCri ticalServicesInitTime2781BootUserProfileProcessing Time2572BootMachineProfileProcessingTime1073BootEx plorerInitTime6966BootNumStartupApps14BootPostBoot Time53300BootIsRebootAfterInstallfalseBootRootCaus eStepImprovementBits1024BootRootCauseGradualImprov ementBits0BootRootCauseStepDegradationBits0BootRoo tCauseGradualDegradationBits0BootIsDegradationfals eBootIsStepDegradationfalseBootIsGradualDegradatio nfalseBootImprovementDelta0BootDegradationDelta0Bo otIsRootCauseIdentifiedtrue
double dutch to me!
have done all security scans and no probs anyone any clues.
os is vista home basic

This is related to Vista Diagnostics / Performance Monitor.

Can you reproduce this error or does it just happen randomly?

Are there any external devices plugged in when it happens?

If you go to Computer > Properties > Windows Experience Index > Advanced Tools is there anything listed under Performance Issues?

[router]

nothing in the performance for times is shut down,just after7pm and 10mins or so before i put this thread on.there was nothing plugged in when it shuts down and it's occasional ,twice yesterday but not today so far.as for creating it,no,it mostly happens when browsing a page online etc

[blueivy]

nothing in the performance for times is shut down,just after7pm and 10mins or so before i put this thread on.there was nothing plugged in when it shuts down and it's occasional ,twice yesterday but not today so far.as for creating it,no,it mostly happens when browsing a page online etc

Have you tried to be a system restore back to a time when the system didn't have these problems (assuming the problems are recent)?

[router]

have run a system health report,apparently monitor driver was having troubles,could this have been problem?.have updated driver software hasn't shut it self down yet!

[blueivy]

have run a system health report,apparently monitor driver was having troubles,could this have been problem?.have updated driver software hasn't shut it self down yet!

This could have been the problem. In fact with quite general errors such as the one you were getting anything could have been the problem.

I did think it was related to Diagnostics / Performance, unless of course the driver caused the Diagnostics to fail in which case it would have logged the error.

I would say play the waiting game and see if the new drivers fixes it.