Topguncp - I went into Admin Command prompt and followed your three steps which fixed the problem Task Manager now working. Thanks for your assistance. Cheers :)

Looking back at in Systems32 I notice that the file Taskmgr.exe starts with a capital T and not lower case. Would this make a difference. I've tried to change it to no avail. Thanks

I am definitely clicking the application (.exe)

Thanks for that but I nwas wrong. The file is there - I didn't go far enough. However when double-clicked taskmgr I was told that Windows could not find the file I was double-clicking.

This...

I have checked and it is no there. The nearest name is Tasks. So maybe the program is not there.

When I right click start window and then click Task Manager I receive the following response:

"C:\Users\...\AppData\Local\Microsoft\Windows\WinX\Group2\5 - Task Manager.lnk

This file does not...