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Data Execution Prevention problem

New Member
Join Date: Oct 2005
Posts: 15
      18th Jun 2009

first off in case it matters my rig is:



Athlon 64 Socket AM2 LE-1640 (2.6GHz)

Crucial 1GB DDR2 800MHz/PC2-6400 Ballistix

7600GT gfx card (can't remember brand off hand)

Win XP Pro SP2

just had a problem with my PC last night, was clearing up my desktop and (due to a dodgy mouse button) accidentaly double clicked on an .exe file (was a setup for a utility to tell me details of an avi). As soon as I had done this I had a window pop up that I hadn't seen before:

Data Execution Prevention

to help protect your computer windows has closed this program

Name: windows explorer

Publisher: Microsoft corporation

when this happened the taskbar/start menu/all desktop items disappeared and didn't come back, the firefox windows I had open worked still and I could alt-tab between them fine, just not do anything else much.

I restarted through task manager, however once the PC booted up again I quickly realised this appears to be happening for any and all .exe I try to run....

checked in control panel and DEM is set to essential Windows programs and services only.

haven't really got much of a clue about DEM so thought I'd ask here and see if anyone has any ideas.


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Madxgraphics's Avatar
Join Date: Apr 2008
Location: In A house
Posts: 4,082
      18th Jun 2009
Hi Dan
Welcome to the forum

Here's a link about DEP
I'd suggest foing a system restore to a time beforeyou double clicked this program, then go and remove it . Run your AV to see if you have picked up a virus or the like..
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New Member
Join Date: Oct 2005
Posts: 15
      27th Jun 2009
hey, sorry took so long to get back to you - family illness has left little time for sorting the PC....

tried to do a system restore and got as far as selecting the date for the restore and hitting OK, then got a dialogue box that said

"system restore is not able to protect your computer. Please restart your computer, and then run system restore again."

so I restarted went into the start menu to do retry the restore but as soon as I hit system restore got the same message.

Also while it still won't let me run any .exe setup files .exe files that were already installed are working fine. Additionally my task bar/start menu etc now looks like windows 95 for some reason....

edit 29/6 - problem has been resolved; thank you avast AV

Last edited by quaf_man_dan; 29th Jun 2009 at 10:46 AM..
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