I have a 300mbps usb wifi adapter.
Want to download windows from the internet after i build my gaming desktop.
I tried to use the product key on my pre installed windows 7 laptop on the microsoft website but it keeps saying error this product key was installed on a prebuilt computer.Please contact ur software manufacturer"
What?!?? So i have to BUY windows? Please help?!?
William: Download this: https://www.microsoft.com/en-us/software… onto a flashdrive (you'll need at least 4GB and it will delete all other files on the drive) using another PC, run the program while still in the other PC and it will get set up. Then plug it into the new PC and use the BIOS to switch the flashdrive to the primary boot device and restart the computer. It will boot into a Windows installation menu instead of the BIOS. Then just follow the instructions provided.
Your new computer will not do much of anything without an operating system. You could get into UEFI or BIOS, but that would be about it. There is nothing built into that to give you a home screen or network drivers.
So you would need to use some other computer to download the Windows installer.
I can't believe you are going to build yourself a computer and don't know how to install windows.
No a computer with no os won't do a darn thing you can't download anything better plan on purchasing a Windows disk eBay is the cheapest route.
"So i have to BUY windows? " – Yes, you do.