Can I use the usb key supposedly used in case of formatting to get windows 8 on a new built PC?

[TOMZonTOMS]

When I bought my previews pc, they gave me a 16gb usb key to configure and get back windows 8 in case i have to format my pc. I'm now asking myself: could I install windows with this usb key on a new built pc or am I forced to buy windows for 100$?

Thanks for your help!

 

[getochkn]

IF you no longer use it on the first PC, then Windows 8 lets you transfer it to a new install, but once activated on your new PC, it won't be activated on the old PC.

 

[TOMZonTOMS]

thank you