If your task manager and registry are being disabled then do the following trick
First enable regedit
open cmd ---->then type
"REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f" (widout quotes)
Hit Enter
& u hv done it
For enabling task manager
Open cmd ---->then type
"REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f " (widout quotes)...
and that all
