There are many many many many many many many many many many many many
possible kinds of "corruption". Some can corrected from within the OS.
Some can't. Since you give us no clues as to what is going on, there's
really no way to answer your questions.
Here they are (again).....
HP Tech Support Issues (Telephone number from Louie: 800-652-6672)
HP Tech Support: 800-474-6836 (24/7)
Hewlett-Packard HP Pavilion dv5 Notebook PC Rev 1
HP Pavilion dv5t-1000 CTO Entertainment Notebook PC
Windows Vista Home Premium Service Pack 2 (build 6002)
P/N KQ574AV
S/N CNF84816H3
BIOS: Hewlett-Packard F.21 08/20/2009
Windows Product ID: 89578-OEM-7332157-00061
Have run Norton Internet Security, Avira free version, Malware Bytes
Anti-Malware, Ad-Aware, CCleaner, chkdsk, SUPERAntiSpyware and Spybot
(over and over again) without finding a problem.
The bios and all drivers are up-to-date.
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Windows Vista Problems:
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No sound anywhere - not even at Startup
Failed to play test tone (Playback Device)
Can't install Microsoft "FixIt" Powershell for "no sound"
Run: Mats_Run.AudioRecording.exe
Fix It Troubleshooter cannot continue because an error occurred
We're sorry, but PowerShell failed to install. Please try again later.
Problem with playback devices
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Can't get microsoft updates (Code 8024402F)
Task Scheduler: The task image is corrupt or has been tampered
with.User_ Feed_Synchronization-{722327AC-5712--4164-B619-A0CC4141E4F3}
The task image is corrupt or has been tampered
with.GoogleUpdateMachineUA
GoogleUpdateTaskMachineCore
mcupdate
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chkdsk /R - finds the same problems every time it's run
Everything runs OK except for multiple instances of:
Recovering orphaned file xxxxxxx.xxx into directory file xxxxxxx.xxx
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Can't run SFC /scannow (only goes to ~53%)
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Screen flickers occasionally
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When I run Avira A/V, it finds 5 unsigned system files
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Volume bar on screen doesn't show up
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Windows Explorer frequently stops working and must restart
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Focus shifts by itself
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HP Total Advisor & HP Support don't work
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Card Reader doesn't work
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Can't open default midi output device
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Will this system run Windows 7?
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Unable to load 'PMHook.dll' (Password Manager XP)
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Want original Cyberlink YouCam back again (Can't remove new version)
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If any more info is needed, I'd be glad to get it!!!