what to do if you have installed two operating systems?

[kinneretov]

what if today you have decided to format your computer and found out, that you didnt delete the previous operting system?
now, you are probably asking yourselves how can you know if you have deleted your previous operating system or not, the best way to see it, is when you restart your computer, if a black window asks you to choose your operating system, and a timer runs back, know that you have installed a couple of operating systems (depending on the number the list shows you)
don't worry! you dont need to format again from the beginning, just follow my steps:
1) go to "my computer" and then to "control panel"
2) double click on "system"
3)in the window, go to "startup and recovery", and choose "settings"
4)in the new window, go to "default operating system", pay attention to the line that is written there.
5) in the same window, click on "edit". a notepad will open, there you will see two lines.
6)delete the line that doesn't fit with the line that was written in the "default operating system".
7) exit from the notepad, dont forget to save the changes you have done.
8) restart your computer, you will see that the black window that asked you before to choose your system, will disappear.
9) go to "my computer" and then to the hard drive you've installed in the operating system, and delete one of the "windows" folders (needs to be two). notice to save the folder you didn't delete its line.

that's all...

i hope this tip will help you in your next formats.

Kinneret