What to do

[Votan]

I say I am sure I did not do anything, the computer says I am not telling the truth. It doesn't let me click to any icon in Control Panel. It keeps giving me this message:

"This operation has been cancelled due to restrictions in effect on this computer. Please contact your system adniminstrator."

Well, I am the administrator and don't knwo what to do. I am the only one who uses this machine and never had this problem before.

Any suggestion?

[NooNoo]

Have you been playing with Internet Explorer Security?

Installed any Security Programs?

Use Poledit?

Check this registry key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\ActiveDesktop

anything showing there?

[Votan]

I downloaded windows upgrades, but not IE6. Everything was fine. I turned the machine off. Later I booted and wanted to double chech the security of IE from option menu. I got that message. I went to Contrl Panel and got that message again. I must have done something but could not recall waht was that.

I followed the key you suggested. There is no ActiveDesktop. (There is no desktop anywhere in the registry!) Instead, i looked up in Explorer. There, there is NoControlPanel with Hex value 01 00 00 00. I Changed it to 00 00 00 00 and it seems it was the culprit. All is normal now.

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer