OEM validation consisted on checking the oembios files.
was a somewhat obfuscated and MS-signed file describing memory locations and copyrighted/trademarked data to look for at those locations.
Later many/most VLKs got blacklisted, but just generate more!
Royalty OEM activation at this point used generic XP keys which simply provoked OEM validation.
After installation, note that Windows is already activated.6.
Attempt to activate your unused license to unlock additional features (e.g. Get an error message stating that the license key won't work...
It is at this point I learnt that it is possible to exploit legacy Windows setup behaviour. Copy the content's of your Windows setup media (in the case of a CD) or extract it from the ISO (in the case of a DL). Once you have the folder structure, open the "Sources" folder.3.
Create a new text file and paste the following into it:4.
VLKs were not checked online in any way in XP/2003, so this was ideal.
With Vista and 7, I never ran into this as a problem.
Either the edition I chose to install matched what was stored in SLIC or it didn't and I was prompted for a key.
If the volume name is different then the install fails.
You can change the install type from Home to Professional to Enterprise simply by burning a new disk with the appropriate volume name.