Russian American.
It's the end of the world.
Spoiler warning:
No. Download "Ghost 4 Linux" ISO and burn it to a disc like you did with Win7. Then follow this guide to create a back up image of your windows partition. Use the same thing to restore it later on if your windows got screwed.
This is most useful when you also install a bunch of programs, since you won't need to install them all over again. I usually install my windows, update the drivers, install antivirus and necessary programs I regularly use, then create the back up image.
PS: Make sure you make more than just one drive when installing windows or you won't be able to use the imaging software locally and then stuff will get complicated. You can change it later on but it's easier to set it up when installing windows.
ある朝、気がついたんだ
僕はこの世界が嫌いなんだって
ある朝、気がついたんだ
僕はこの世界が嫌いなんだって
No you don't. HDDs are though motherfuckers.
What has happened is that your computer isn't sure where to boot from. Most likely because your previous windows installation had a special hidden recovery drive and you installed a fresh one without recovery so now you have two bootable drives. This can be fixed (I've done it before) but it's a real pain in the ass. It's easier to just back up everything you have, format the entire HDD, and make a complete fresh install with new drives.
ある朝、気がついたんだ
僕はこの世界が嫌いなんだって