Hello there. I have a really anoying problem. When I click on a link to download a file (ie google earth) It will not start, If I then click the link "click here if download does not start automatically" my browser just freezes up and I have to close it via task manager. The problem started after a very helpfull brother inlaw (who is a programe developer) Tried to sort some slow running problems out for me using "Hijackthis" He thinks he may have deleted somthing that he shouldn't have (you don't say) But now he's too bussy at work. I also get an error message "C:\WINDOS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft Windos applications. Choose 'Close' to terminate the application." This message comes up when my Daughter tries to use her "Micky Saves the Day" CD that came free with the Daily Mail. The 2 errors started exactly at the same time. I'm running xp pro and ie7 I have every update poss from Microsoft. Theres another thing since our P**L messed with my pc I can't use the validation thing in windos update by right clicking on the bar at the top of the page and clicking on install active x control. it doesn't work now. I have to use the link at the bottom of the page. Please can you help I hope its just somthing simple. Oh and no he didn't create a restore point!! Thanks for any help received Manix666.