Windows 10: Cannot open files like task manager, registry editor, etc.

Hello Microsoft,Recently i tried installing an application with a .exe file, but it didn't open. So, i tried opening task manager to see what was the matter. I found out that I could not open task manager as well.I tried different procedures and found out that:I couldn't open task manager, registry editor, admin command prompt and other system applications.I couldn't open .exe filesI couldn't access administration controls while using certain commandsBut everything worked fine when i tried opening the system in safe mode.Please help me cuz I am stuck here.I use windows 8.1

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Registry Editor and Exe Files won't open

I recently changed the wrong value in the registry editor by accident, and now exe files wont open. I can't go back in to registry editor because it is an exe file. I have tried many things, like changing cmd.exe to cmd.com and opening command prompt,
but nothing I do inside seems to work. I also changed registry editor to a .com file format, but it won't open. Is there anyway to fix this?

 

My Registry Editors keep getting launch and the Task Manager keep getting disabled at the beginning

Hi, I owned a Windows 10 and after I installed uTorrent suddenly the registry editors window keeps getting launch every time I start the Windows.

Plus, my task manager keeps getting disabled as well. I already checked at the StartUp tab on my task manager but I can't find the Registry Editors options so I can remove it.

And for the task manager's problem, I also did to delete the 'Disable Task Manager' on Registry Editors but when I restart my laptop, the Task Manager consistently getting disabled and Registry Editors keep getting launch as well.

Please help.

Thank you.

 

Registry Editor disabling Task Manager at startup

A few days back a popup began to appear on startup with Registry Editor asking admin access I accepted then I realised my Task Manager has been disabled. I enabled it from regedit and restarted same popup appears and if I click yes Task Manager is disable
and remains enabled if I click no.

This problem doesn't occur in safe mode but occurs in diagonist boot, so I guess some Microsoft service is causing this

Thanks for help in advance.