How to enable back command prompt that has been disable by virus

Lot of virus nowadays disable lot of windows applications such as command prompt,
registry editor, task manager and others. For example you receive message "The
command prompt has been disabled by your administrator" when you fired up your
command prompt.To enable it back you just need to click Start, Run and copy this
( REG add HKCU\Software\Policies\Microsoft\Windows\System /v DisableCMD /t
REG_DWORD /d 0 /f ) -copy code without ( )
Then hit run..problem solved!!
Warning!!! dont do this if you dont know what are you doing!! my suggestion is see my
post about remove restriction tools
Another common problem is
"Task Manager has been disabled by your administrator" this one really popular. Lot of
us consider this is a killer.Wait dont format your pc. save your time by only do this. Same
procedure click start run then insert this
( REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v
DisableTaskMgr /t REG_DWORD /d 0 /f )-copy without ( )
Or simply download and run this fixer.reg
I just try. Tell me if the code didnt work. Thanx