To fix the no task manager issue go to start then run (windows XP) or in the search line for vista….or just use the shortcut windows key + R.

Copy and paste the following into the run command then hit enter:

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

press crtl+shift+esc……task manager should be back