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GPU-Z: Could not start driver

Joined
Apr 2, 2014
Messages
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System Name Whats Cable Management?
Processor i5 2500K @ 4.5GHz (daily)
Motherboard Asus Sabertooth P67
Cooling Cooler Master 212+ (MX-4)
Memory 16 GB 2133 Mhz RipjawsX (2x8)
Video Card(s) Two MSI GTX 570 OC/PE's in SLI ("The Mod")
Storage 1TB Seagate Barracuda
Display(s) 27 inch Hanns-G
Case Cooler Master Storm Stryker
Power Supply Corsair AX1200i
Software Windows 7
Benchmark Scores 3D Mark Vantage: P38355 3D Mark 11: P12130 Fire Strike: P8009
Just as it says, this has never happened to me before, but when I was going back to do some bench marks this popped up:
84a277d5_gpuzproblem.png
1957501

The last time I used GPU-Z was when I had Nvidia 326.80. I've uninstalled/reinstalled, downgraded, switched to the ROG version, and the same problem keeps coming up. I've given it admin permissions, checked updates, and other posts about GPU-Z issues. Changed my drivers and even ran a Display Driver Uninstaller sweep, then reinstalled my drivers. Am I just making a rookie mistake somewhere? I'm no programmer, just hardware and games.
 
Do you have any anti virus software that could interfere?
 
I had McAffe but I that is because it was bloat ware. Coincidentally I uninstalled it week or so ago, before running GPU-Z for the first time in a long time. There is also the Microsoft anti-virus stuff but I checked the permissions and securities options to make sure I didn't miss anything. Then again, I am not a programmer so I probably missed something.
 
Ok, so it's not that .. You are running it as administrator, right ?
 
Ran as admin still doesn't work... *cries* HOW DID THIS HAPPEN?! I'm gonna just have to reinstall Windows... thats it...
 
Can you start GPU-Z and while you see that error, on an admin command prompt run "sc query gpu-z" ?

Capture3543.jpg


result should be that, would be interesting what it says on your system
 
kernaldriver.png

I never got into even basic programing, and it shows: I'm 23 and what is this?
 
What happens if you try "sc start gpu-z" now ?

also try sc delete gpu-z and then start gpuz again
 
gpuzfails.png

I must have royally screwed up somewhere.
 
Access denied might mean you didn't start the command prompt as administrator.

Start Menu -> type: Command prompt -> right click -> run as administrator
 
keepsfailing.png

queryex.png

GOD WHYYYYYY.
 
SUCCESS.png

YAY! Now what?
 
Wow this makes no sense. Did you disable any other Windows services (maybe followed some kind of "Windows Optimization" guide ?)
 
NOPE. Everything else on my computer is running smooth as butter, just GPU-Z is acting up.
 
Hello,i had the same problem few minutes ago,Win 8.1 with Avast 9 ----reinstal,reinstal ...GPU-z---nothing....and adminstart---nothing...And i try to change into Avast settings to exclude GPU-z---nothing...And i click/right/ on the icon and open contex menu,and click on the ---everytime do not work in sendbox---------and problem finish!!!
 
I got the same issue, reinstalled drivers, re-downlaoded gpu-z, rebooted several times, nothing.
what to do?

DtVGZF3.jpg


which service is that supposed to be?
 
Last edited:
i found my solution
in system drivers i previously disabled service gpu-z.sys located at C:\Users\USERNAME\appdata\local\temp (windows7)
so i just deleted that driver and file (did it with windows 7 manager - service manager, it also can be done with autoruns sysinternals)
started gpu-z and voila.

so it's problem with temp driver, that has been blocked or corrupted.
 
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