MyStart is a Hijacker that replace the Browser Settings (Homepage and search engine).
If you have installed Adwares, PUPs, you have also probably installed a Browser Hijacker.
All your Settings has been replaced.
To get your settings back, you scan Reset it.
- Open Internet Explorer
- Click on the gear icons and then click on Internet Options.
- Click on the Advanced tab.
- And finally, click on the Reset button.
- Click the Show advanced settings link
- Click on the Reset button.
- Then click on Reset Firefox button
- Click on Reset Firefox again
- Click on Finish button when Firefox has been reseted.