I recently installed Windows 8 Enterprise in my company. During the installation, setup does not require input of serial number/key. So when Windows installs, you must go through procedure of changing the key, and activating Windows.
So here it goes.
On Desktop, go with your mouse to bottom left corner. When Start icon pops up, press right mouse button and select Command Prompt (Admin).
Now you must run VB script to change serial key: (X-es represent your key) slmgr.vbs -ipk Now all that is left to do is to activate your windows. Also through command prompt, and with the same VBs script, but with diffrent switch. slmgr.vbs -ato After hitting the Enter, the pop up will tell you that Windows were activated successfully.
I have a little Acer Revo without a CD-ROM. External CD-ROM is expensive, so I reinstalled my little PC from USB stick.
First, you have to have a stick not smaller than installation CD/DVD of Windows 7 or 8. Next, motherboard must support Boot from USB so you can boot to setup. The procedure goes like this, because we must prepare the USB with DISKPART. In my case CD/DVD-ROM is D: drive and USB flash drive is E: drive SELECT DISK 1 CLEAN CREATE PARTITION PRIMARY SELECT PARTITION ACTIVE FORMAT FS=NTFS ASSIGN EXIT
Next, make USB bootable Enter to your CD-ROM and subfolder boot D: CD BOOT BOOTSECT.EXE /nt60 E:
And then copy all from CD/DVD to your USB. I used xcopy, but you can copy it from Windows explorer. XCOPY * E:\ /E /Y
Plug in you USB into a computer, and boot from USB.