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Windows 7: explorer.exe will not start error 0xc0000022

05 Nov 2012   #21

Windows U7 Ultimate x64

I was having the Black Screen of Death with mouser pointer and realised through Event Viwer (eventvwr.msc) that the explorer.exe crash was associated to the propsys.dll located in windows\system32 folder.

So, I managed to emulate a mini WinXP via Hiren's Boot, loaded a "health" propsys.dll from my other Windows 7 system and overwrote the corrupted one. Problem solved to me!

My System SpecsSystem Spec
22 Nov 2012   #22


I wanted to use hidden animation and this error happend. I had Far Manager 2 on my drive, so I just sorted all files in windows and system32 folders by date. Replacing explorerframe.dll (it was the only updated file from today) from another machine solved my problem.
My System SpecsSystem Spec
31 Jan 2015   #23


I am currently having this issue and none of the above mentions are helping me. I have the same window and I can only use safe mode properly. I can open new tasks with the task manager but I have no internet connection (even with a cable).
My System SpecsSystem Spec

31 Jan 2015   #24
Layback Bear

Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64

Welcome to our furum JDHMathews.

I would suggest starting a new tread of your own so you can get proper attention.

This tutorial by tom982 should be very helpful.

Windows Update Posting Instructions
My System SpecsSystem Spec
19 May 2015   #25

Windows 7 Professional x64

I apologize if I am giving life to a dead thread, but here's my solution:

I had this problem on a customers computer. After googling for hours and trying to fix it via various CMD commands i gave up. Neither explorer.exe or taskmgr.exe worked either in normal or safe mode. I literally couldn't do anything. I was ready to backup files and do a reinstall of windows, so i took out the HDD and put it externally to my laptop.

When I was trying to backup the files to my own computer I didn't have access to all of it...
I read somewhere that the reason you get the 0xc0000022 is because you do not have access to certain files.

What I did was take ownership of the HDD. (right click HDD and go to properties-> security -> advanced) From here, I took complete ownership of the entire HDD (except the windows folder, which I took ownership of separately later). I then put that "Everyone" had read/write access to the entire disk and windows folder.

It worked like a charm. The PC now boots up perfectly and explorer.exe doesn't give me an error.

This worked for me, not garuanteed to work for everyone else.
My System SpecsSystem Spec
19 May 2015   #26

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

It may work - but lowers the security of your so far that it would be trivial to infect it.
Permissions are restricted for good reason, and what you appear to have done is remove all the fences on the farm, with the results that you can expect an invasion from the wolves, bears, lions, tigers, and every other predator out there, very quickly!
My System SpecsSystem Spec
15 Nov 2015   #27

Windows 7 Pro 32-bit

Please see next posting - this one had no title, so was kind of useless.

Bob C
My System SpecsSystem Spec
15 Nov 2015   #28

Windows 7 Pro 32-bit
A full disk check followed by system restore worked for me

I tried 101 different things (suggest by my googling for the error) over yesterday and the day before and had eventually decided to do a clean install.

However, it was late at night when I made this decision, so I thought, just because it would be quick for me, I'd start a full disk check running and go to bed.

I started the PC from a Windows installer DVD, ran a command prompt, changed to the C: drive (type in "C:" - remove quote mark when typing the command) and did a full disk check (chkdsk /r) - which takes ages because it checks every sector of the hard disk for errors.

In the morning, I ran a system restore (date chosen was prior to the last batch of Windows updates - previous restore attempts had failed) and then tried starting up normally - and it worked.

My conclusion (guess?) is that there must be some bad sectors on the drive and these ended up being used when those updates were installed.

The full disk check marks those bad sectors as not to be used and so the restore was able to work because it didn't involve stuff being written to bad sectors.

I'm now plodding through doing the 20+ updates that were lost when I did the system restore, hoping that they'll all go on nicely.

[Update - the updates did go on okay. Phew! Just finishing off using CCleaner to get rid of left-over temp files and orphan registry bits, following up with a defrag and optimise]
Bob C
My System SpecsSystem Spec

 explorer.exe will not start error 0xc0000022

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