Question [Urgent] 32Bit to 64Bit without a flash drive/disk?

ceriumin

Honorable
My friend needs help from me upgrading to 64bit but what slows me down is that he does not have access to a flash drive and cant buy one. He does not care about his files whatsoever and I recommended him to wipe his operating system on his hard drive and then go onto his siblings computer and install windows 10 installation media from there. Is it ok if i do this or is there another way to upgrade to 64bit without any other device? Yes his computer is 64bit compatible so don't ask.
 
No, you'll need a 8GB flash drive, or a DVD and DVD drive.
32bit to 64bit is a full wipe and reinstall, not a simple 'upgrade.

Yes i know that it is a full wipe but will it still be possible if i wiped the hard drive and handed a usb sata cable into another computer, installed the media and plugged the hard drive iback in to his computer to install?