Help!

Hey everyone i downloaded a Bootstar manager from here thinking that it was something else that i was looking for now everytime i turn on my computer the bootstar manager boots my computer instead of the normal windows boot. When this first happened i immediatly uninstalled the boot manager thinking that it would go away, but it didnt. Now the bootmanger has expired and its a huge yellow screen when i turn on the computer that says "bootstar manager has expired please visit the website to buy this until then the bootstar manager is unregistered and the boot will be delayed by one second each time the computer is booted"
WHAT DO I DO?? HOW DO I GET RID OF THIS THING!? I ALREADY UNINSTALLED IT THE VERY DAY I SAW THE BOOT SCREEN!

 

That's really shady software

You could try to use something like SuperGrubDisk http://www.supergrubdisk.org to restore your MBR. I've had luck with it.

Backup your important data however if something goes wrong.