how to reinstall windows 7

[Ihsan58]

My computer totally destroyed (hard disk and motherboard),
I have my windows 7 home product key (retail) and the disk, can i use this key in another laptop.

 

[BadAsAl]

Yes, since you have the retail version you can do that. You may have to do a phone activation, but as long as you only have it on 1 device it will activate.

 

[13thmonkey]

a laptop will generally come with a license already