Even i faced this kinda problem. ...well my problem was like my control panel was missing and i couldn't check my system info...or run the reg edit in Start>Run..
the same stupid thing use to pop-up..This operation has been cancelled due to restrictions in effect on this computer. Please contact your administrator....i was like wht the heck am i suppose to do now..
So if any of you people have problem just like me just type in this in your Run this well some how fix your regedit.......
Step as follow:-
Click start
Start>Run>
then type or simply just copy paste this in your run dialog box....
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f
Hopefully this will unable your reg edit
then to get your control panel back
Do the Following
Click start
Start>Run> regedit
Ctrl + F (The find box will pop up)
then type in nocontrolpanel
then over there you file find
NoControlPanel REG_DWORD 0x00000001
Make that 1 to 0
and then you can access your control panel...the control panel will be back to it old place.....
This is all i did to get my pc workin back to normal... ^^
I hope this help you guyZ
Ciao Guyz
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