cannot open add/remove programmes!!!

[Guest]

i realy need some help with this. i have downloaded some antivirus software
but in order to use it i have to remove some old software. whenever i click
on add/remove programmesin the control panel, a pop up appears saying the
programme needs to be shut down to protect windows. it says it has something
to do with data execution prevention or something. please help me!!!

 

[Andre Da Costa[ActiveWin]]

From Michael:
Disable DEP in Vista:
Type or copy and paste this into an elevated command prompt window:

bcdedit.exe /set {current} nx AlwaysOff

Hit enter and you should see the confirmation: Operation Completed
Successfully
Reboot and DEP should be off.

Use bcdedit.exe /set {current} nx AlwaysOn
to turn it back on.

 

[Guest]

You don't tell us much!!

Have you attempted to install the 2nd one?
What names are they?

You can't uninstall something that is still running!

Right-click on the Anti-virus icon in the Taskbar, and see if you can
disable it from there. Then uninstall it.

Or, go into Programs, and see if the program has its own uninstaller.

 

[Guest]

sorry lol. i downloading mcafee antivirus software, but have previously got
old antispyware o my computer. i tried to uninstall the software, but says i
need 2 get into add/remove programmes to fully uninstall the software.

 

[Guest]

sorry i dont understand how to do this. can u please explain it to me again
but step by step. sorry if im being a pain!!