ive f*cked up my laptop please help!?

[Brad]

Well i was on youtube and i left my mouse on the little ad on the bottom. Then accidently i pressed on it. Now my computer has started using mystart.com instead of google and on every page i go on weird adverts come up. e.g on facebook there is adverts all down the sides. how do i fix it?
thanks everyone for helping. i used the dell one second and it worked so thanks everyone

[Dell Inc.]

Hi Brad,

As this issue has started to occur recently, the best thing to do is to restore your system to a known good date.

Click the link below for detailed instructions on how to perform system restore.

http://dell.to/Qnh9Rx

Hope this works.

Thanks & Regards
Vishal S

[Johnny]

Hi :-)
Hahaha LOL... I've been there before...
Probably the easiest way to fix it is to run the free utility ComboFix.
I have used it more times than I can count, and it fixes it every time!
You can download it from here: http://www.bleepingcomputer.com/download/combofix/

WARNING: Only download it from the bleepingcomputer.com link I provided.
There are false websites that CLAIM to have this file and then they infect you when you try to install it.
ComboFix takes a few minutes to run, but when it's done, you should be back to normal :-)

I like System Restore of Windows, but I always try to correct it an alternative way at least once, before moving on to the windows system restore, as it sometimes has unwanted affects too...

Also, I would removed ALL Toolbars in Add/Remove Programs of Control Panel (called Programs and Features in Windows Vista and above)

[Jordan]

Generally go to the Add/Remove programs panel, and remove any programs that seem like you did not install or they should not be there. If you find "mystart" in there, delete it. Also, go into your browser settings and delete the add-ons you don't want, like mystart and FaceBook. Also you can change your homepage on the browser or the default search engine back to Google if you wish. Download Ad-Block Plus as an add - on, and you will not see any adds in the future, preventing this from happening again.

[R]

Reinstall windows