Now let's take a look on how you can go ahead and reinstall Windows 7 on your computer ( or ) how to install Windows 7 on your computer.
First ensure that you back up all your data before beginning the reinstallation.
Reason being simple when we are going to install Windows, Windows will erase all the data on the computer and reinstall a fresh copy.
First insert the Windows disk that you have got into the computer.
Now restart your computer and then tap f12 on the keyboard to get to the boot menu there choose boot device to cd/dvd or cd rom or dvd rom and then tap enter continuously until you see an option which says Windows is loading files.
By any chance if you are not able to go to the boot menu then tap f2 when the machine turns on.
It will take you to the bios there go to the boot section and then change the boot order prioriy to cd/dvd rom and then restart your system then it will attempt to boot from the disk.
Now once the machine is booting from the disk as I told you you will see a message stating that Windows is loading files.
Wait until Windows loads all the files.
Once it loads all the files you will get a Window where it will ask you to select the language choose the language in which you want to install Windows.