Windows 8 OEM

As you talk about an BIOS OEM Key, yes. it matters! BIOS OEM Key's are found in Laptops and Netbooks only at this time.

 

For laptop that came with windows 8 installed

1. No as long as you choose the correct SKU[Edition]

2. You will either have UEFI or BIOS with MSDM table that contains the key, so partition has nothing to do with activation.

3. On same laptop you can install and activate any number of times.

4. Yes possible

if you are speaking of just one desktop then you can service your image with the below command

Code:

Code:

Code:

Dism /Image:C:\test\offline /Set-ProductKey:12345-67890-12345-67890-12345

 

The key is present in BIOS/UEFI, so you don't need to worry about deleting partition.