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

18 May 2012   #11
Hanna 1

win7 home premium-64bit-SP1-IE10

Sorry Mason
In my last post i forgot to mansion that you have to delete the KB in question before rebooting.

My System SpecsSystem Spec
18 May 2012   #12

Windows 7x64

i ran into the same issue. this KB is definitely causing issues with explorer.exe However i was able to log in as local administrator and remove the KB after which the non-admin users could log into the workstation again.

Does anyone know if there is a fix for this so that the KB can be installed but non-admin users can log in?
My System SpecsSystem Spec
18 May 2012   #13

windows 7 ultimate 32 bit


I am not able to delete the KB before rebooting. Unless i'm doing something wrong. I went in through control panel like you said, but right clicking doesn't give me a delete option.
My System SpecsSystem Spec

18 May 2012   #14
Hanna 1

win7 home premium-64bit-SP1-IE10

Can you try to reboot in safe mode with network (by hitting F8) ?
My System SpecsSystem Spec
18 May 2012   #15

windows 7 ultimate 32 bit

i get the same explorer error and a black screen.
My System SpecsSystem Spec
21 May 2012   #16
Hanna 1

win7 home premium-64bit-SP1-IE10

Mason, sorry to be late cause i was out of town.
The SFC /SCANNOW must be executed at least three times to take effect. Boot your computer in safe mode whith admin account
By the way, see this thread if it can help:
Wish you luck
My System SpecsSystem Spec
21 May 2012   #17

windows 7 ultimate 32 bit

I tried that as well (running explorer from the task manager), but got an error message that explorer.exe did not start correctly and had to be shut down. Whenever I try to open it after installing this update, i get that error message, whether in safe mode or not.

On the SFC scan - do i have to reboot my computer between scans? I apologize for my ignorance - i need a little extra help (and grace) on this.

it sounds like I need to install the update, reboot to windows (where I will have a black screen with no desktop), then restart in repair mode to a command prompt, where I will run the sfc / scannow command. Do i run it three times in a row, or reboot between each attempt?

Thanks for the help hanna!
My System SpecsSystem Spec
21 May 2012   #18
Hanna 1

win7 home premium-64bit-SP1-IE10

Try the method in row first and if it didn't work try it with a reboot in between.
One thing again: revisit the tutorial for SFC /SCANNOW and read-it carefully.
My System SpecsSystem Spec
04 Sep 2012   #19

Windows 7 Home Premium 64bit

This isn't a permanent fix to the problem but at lease it will get your explorer.exe back up and running.

After you login and close the error msg hit Ctrl + Shift + Esc
Click New Task
Click Browse
Navigate to c:\Windows\explorer.exe
Right Click on explorer.exe and select Run As Administrator
Your desktop should appear as normal

For some strange reason the error message doesn't appear when I run explorer.exe as administrator. If I repeat the same steps and run explorer.exe normally then I will see the 0xc0000022 error.

Further assistance would be appreciated to eliminate the above steps.
My System SpecsSystem Spec
04 Sep 2012   #20

Microsoft Community Contributor Award Recipient

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

I *may* have a solution.....
Please boot to the recovery environment ('Repair your computer' in the boot menu) and open a Command Prompt Window there.
At the prompt type DIR C:\Windows and hit the Enter key - if it comes back 'file not found' then try DIR D:\Windows etc. until you get a listing.
Once you have that listing, type the following command

DIR <drive>:\Windows\System32 /AR /S
where <drive> is the drive letter found above

and see what the response is.

If there's more than half a dozen files listed, then you need to run the following command

ATTRIB -R <drive>:\Windows\System32\*.* /s

You will get a large number of errors - don't worry about that.
now reboot to normal windows, and see whether the problem has changed.

DO NOT run the command if there's only a few files listed!!
My System SpecsSystem Spec

 explorer.exe will not start error 0xc0000022

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