You can use one of those pastebin key to activate Pro edition and then quickly install your promotional WMC key which you got from M$ for free, validate it via phone, and you're done. It doesn't require KMS, just slmgr /ato after validating it from M$ servers.
What do you want to do build a windows 8.1 pro retail activated iso, then you can follow the same method excluding the media center stuffs use your retail key instead of media center one
I have a copy of my files, data.dat and tokens.dat with activating my legitimate keys. To W8Pro and W8ProWMC If... use this... Code: XCOPY /H /R /K /Y C:\WMC_DATA\tokens.dat C:\W8MNT\Windows\System32\spp\store\2.0 XCOPY /H /R /K /Y C:\WMC_DATA\data.dat C:\W8MNT\Windows\System32\spp\store\2.0 ... when you do a clean install, if I ask for the key, can I use mine?.
I did put the ei.cfg in the sources folder. I have also used autoattend xml When installing it took a long time, at least 20-30 mins every time before the installing started followed by asking for the key. OK, I will try again.
I do use both EI.cfg with autounattend.xml file, it works perfectly. Here is the EI.cfg file contents Code: [Channel] Retail [VL] 1
Hi, thank You first of all. Just created wmc.iso. I will try fresh install tomorrow. Creating Iso worked like a charm. I have a question: I tried the Iso in a virtual machine, and I cannot change or install any different Produckt Key/s. I tried this: In Windows 8, open the Registry Editor Search for MediaBootInstall and set the value to 0. Open an elevated command prompt (run as administrator) and enter: slmgr /rearm If you get an access denied error message, you’re not running the command prompt with administrator privileges Restart the computer Open a command prompt and enter: slui 3 Enter your Windows 8 upgrade license key and activate it Done! Still cannot change the Key. Is there any solution to this ? Or is the iso somehow linked to the System where activation came from ?