Very Slow Booting Since Today

probuddha

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Mar 22, 2013
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Hello

So it started today, that my PC gets stuck at Starting Windows for about a minute before proceeding further.

Config

ASUS M5A78L-M/USB3
AMD FX 6100 CPU
Corsair Vengeance DDR3 - 4GB x 2 (Part #CMZ4GX3M1A1600C9 on both)
ATI Radeon HD 5400 1GB
Windows 7 Professional x64

I checked the Event Viewer and found the following error

Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.

I also disabled all startup services except for Avast and the booting is still slow

Any advice please?

Thanks
 

Evvvvv

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Feb 6, 2017
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Update all the drivers. Check are the registries of the PC fine.
 

probuddha

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Mar 22, 2013
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Thanks for your response

Since I made the post, I followed the instruction at https://support.microsoft.com/en-in/help/2545227/event-id-10-is-logged-in-the-application-log-after-you-install-service to resolve that error. While that error is now gone, but the slow booting remains. I further checked the event logs and found the following error

Windows detected your registry file is still in use by other applications or services. The file will be unloaded now. The applications or services that hold your registry file may not function properly afterwards.

DETAIL -
4 user registry handles leaked from \Registry\User\S-1-5-21-1020949375-1830923415-4062439153-1000:
Process 1540 (\Device\HarddiskVolume1\Program Files\AVAST Software\Avast\AvastSvc.exe) has opened key \REGISTRY\USER\S-1-5-21-1020949375-1830923415-4062439153-1000
Process 1540 (\Device\HarddiskVolume1\Program Files\AVAST Software\Avast\AvastSvc.exe) has opened key \REGISTRY\USER\S-1-5-21-1020949375-1830923415-4062439153-1000
Process 1540 (\Device\HarddiskVolume1\Program Files\AVAST Software\Avast\AvastSvc.exe) has opened key \REGISTRY\USER\S-1-5-21-1020949375-1830923415-4062439153-1000
Process 1540 (\Device\HarddiskVolume1\Program Files\AVAST Software\Avast\AvastSvc.exe) has opened key \REGISTRY\USER\S-1-5-21-1020949375-1830923415-4062439153-1000\Software\Avast Software\Avast

I uninstalled Avast completely and when rebooted, it was slow again and this time the error was this

Faulting application name: AvastSvc.exe, version: 18.3.3860.0, time stamp: 0x5abba1e1
Faulting module name: ntdll.dll, version: 6.1.7601.24117, time stamp: 0x5add1d8d
Exception code: 0xc0000005
Fault offset: 0x0004ebcb
Faulting process id: 0x600
Faulting application start time: 0x01d3e83c37945155
Faulting application path: C:\Program Files\AVAST Software\Avast\AvastSvc.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: b9a3f0b0-542f-11e8-9a67-9c5c8e78217a

As for updating drivers, I have disabled auto update hardware drivers from Windows as it had caused booting issues before requiring a Clean Install, particularly with updating the driver of the GPU.

Is there a way for me to check which drivers need to be updated?

Thanks again
 

Evvvvv

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Go to motherboard website, download latest ones, install and that's it.
 

probuddha

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Mar 22, 2013
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Just did both, sfc /scannow found no problems and MBAM found a couple of PUPs and some items in the Recycle Bin.

Thanks
 

Evvvvv

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So is it any faster, did you check? OR still no go?
 

probuddha

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Mar 22, 2013
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SOLUTION:

So I found out that my C drive had around 10 Gigs of space left. I ran Disk Cleanup and removed around 75 Gigs of gunk, including two windows.old folders. Rebooted and after patiently waiting for 1 hour for Windows to 'Configure' updates, the issue seems to have resolved.

Thanks
 

Evvvvv

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Sorry didnt notice previous message. Glad you solved it. Try to get rid of those Windows.old folders. Also always have double the mount of RAM as free HD space. In your case keep it at 16+ free.
 

probuddha

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Mar 22, 2013
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Didn't know about the double RAM thing. Thank you so much, I will keep it in mind :)
 

Evvvvv

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I kept getting BSOD's back in the day because disk was so full. So I read that a while back, cannot reference it because it was a bit ago.