Unable to delete registry keys

[Tegewaldt]

Hello Sevenforums

Whilst trying to delete the registry keys Mpfilt and subkeys, i encounter different errors depending on my approach.

Trying to just delete the keys usually results in a problem with permissions.

Running in admin mode etc. changning permissions reports that "an error has occurred" while trying to delete.

Essentially, i need a failsafe way to remove the keys.

Thank you in advance Sevenforums members

-Tegewaldt

 

[GokAy]

Why are you deleting them?

Try running regedit through - GiveMePower Download
make sure you backup the registry, or create a manual System Restore point

 

[Tegewaldt]

To attempt to fix my usb ports.

The link you gave me reads error 552 when i try to open it

 

[Ranger4]

What is the problem with your USB ports?. Usually USB problems are associated with drivers. Could you show a screen shot of your Device Manager with the USB section expanded.

 

[Pyprohly]

Hi Tegewaldt,

If you believe it's the permission settings that prevent you from deleting those keys, start up a PowerShell session, run a line similar to the below and paste it's output here. This will allow us to view all the key's permissions.

"[COLOR=red]HKCU:\Path\To\Key[/COLOR]" | %{$a = Get-Acl $_} ; ''; $env:Username; $a.Owner; $a.Access | ft -A -Wr

 

[Tegewaldt]

First of all, i found this thread, which i thought i'd give a try since the problem sounded almost identical to that of mine.
http://www.sevenforums.com/hardware-devices/230064-usb-problem-driving-me-nuts-3.html

The USB ports do not work with any devices plugged into them, and it's been like this since a recent power surge.

i encountered a BSOD for some reason while trying to navigate using the keyboard (PS/2 & USB mouse not working)

@Pyprohly how do i use the powershell, and should i just replace the "red text" with like "C:\Windows\...\Key"?

On a sidenote: Sorry for foreign language
And i am posting "screenshots" from my phone since i cant easily transfer files from the affected PC.

 

[GokAy]

Load defaults in BIOS.
Download and make a bootable DVD/USB Linux Mint MATE, boot with it and see if USB devices work with it.

For Powershell, open a cmd and enter powershell

 

[Tegewaldt]

The USB devices work while in BIOS, and resetting to defaults doesn't change anything as far as i can see.

Since the problem occurs when windows loads up, why would trying the ports on Linux make any difference? Just curious

 

[GokAy]

If they are working in BIOS, I would say not really.

Tried this MS fixit yet? https://support.microsoft.com/en-us/mats/hardware_device_problems/en-us

 

[Tegewaldt]

Will try it, as well as the powershell as soon as i get home.

On a sidenote; i have a backup system.image on a secondary drive (which i have access to)

If All fals, it'd be handy to know how to reset the system through it

 

[GokAy]

Is it Windows built-in backup or a third party software?

See http://www.sevenforums.com/tutorials/675-system-image-recovery.html

 

[Tegewaldt]

Okay, trying to boot up windows now keeps resulting in random BSODS for unknown reasons. the last time i used the machine, it "worked fine".

Seeing as a fix to the usb problem and possibly PS/2 port probably wouldn't do anything abouth the system instability, i've decided that "loading" the system image might be a better idea.

So... does anybody here know exactly how to do this?