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Windows 7: "Windows cannot find...Task Manager"

08 May 2013   #1

Windows 7 Ultimate x64
"Windows cannot find...Task Manager"

I was using Process Explorer in place of Task Manager. I decided that I no longer wanted Process Explorer so I just deleted the files (it was a standalone .exe). Now when I press <CTRL>+<SHIFT>+<ESC> nothing happens, no error message, no task manager. The same thing happens when I press <CTRL>+<ALT>+<DELETE> and choose "Start Task Manager."

Now if I go to C:\Windows\System32\taskmgr.exe and try and open it I get this error:
&quot;Windows cannot find...Task Manager&quot;-no-task-manager.png

Any ideas??


P.S. This is happening on my laptop running Windows 7 Ultimate x86

My System SpecsSystem Spec
08 May 2013   #2

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit

Open registry . Navigate to

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe
What does it say for Debugger ?

If that doesn't work try this

Find and run procexp.exe.

Click in Options menu on Replace Task Manager and than Restore Task Manager.
My System SpecsSystem Spec
08 May 2013   #3

Windows 7 Ultimate x64

It's shows the file path for Process Explorer that no longer exists.

Is it as simple as putting the file path for taskmgr.exe located in the system32 folder?

EDIT: There is no option in Process Explorer to "Restore Task Manager."
My System SpecsSystem Spec

08 May 2013   #4

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit

Delete the debugger key
My System SpecsSystem Spec
08 May 2013   #5

Windows 7 Ultimate x64

Thank you! Deleting the debugger key worked. Task Manager is working again.

Thanks again!
My System SpecsSystem Spec
08 May 2013   #6

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit

You're welcome . You could even delete the taskmgr.exe folder under the folder Image File Execution Options
My System SpecsSystem Spec
03 Feb 2017   #7

Win 10 64 bit

I simply had to reply and say that people like you are gold dust! That registry fix has saved me many hours of valuable time not having to restoring my system after stupidly installing process hacker. Thank you!
My System SpecsSystem Spec
09 Mar 2017   #8

Windows 10 x64

So helpful!
My System SpecsSystem Spec
28 Apr 2017   #9

Windows 7 Ultimate x64

What's the debugger key, how do I delete it? I need a step by step.
My System SpecsSystem Spec
14 Nov 2017   #10


He told about program Process Explorer - Программа Process Explorer для Windows

Download it, start procexp.exe and come back to this thread for further help.
My System SpecsSystem Spec

 "Windows cannot find...Task Manager"

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