If you ever need to reinstall your OS you would edit the 'Ei.CFG' so that you can install Windows pro otherwise when you go to do a clean install your system would revert back to home instead pro. Unfortunately not, and the Windows 10 home key will remain in the BIOS. Your drive should say 'unallocated', select the unallocated drive and click next to reinstall Windows. Remove all recovery files, partitions, and wipe your primary HDD.Ħ. Once you get to the option to 'upgrade' or 'Custom', click on Custom.ĥ. You should see an option now to select 'Windows 10 professional or Home'.Ĥ. Click install now and click through the various options.Ĥ.

Press the F11 key to enter the boot menu as soon as the computer begins to boot, select the USB and press ENTER to load the Windows setup.ģ. Put the USB into your system and restart your computer.Ģ.

Make sure all your files are backed up before proceeding to the next step.ġ. Make sure the USB we created is still in your system, now Save as 'Ei.cfg' directly to the 'Sources' folder of ISO media created on your USB ( Make sure you add the quotations so when you save this it creates a CFG file and not a text file) Open up note pad and copy and paste the following: Now we need to created and add the 'Ei.cfg' file to the sources folder of the iso file you just created.

Doing the steps will prevent this just FYI.īefore you begin this process we'll need to create new recovery media to boot from so please get a USB with at least 4GB of space, go to Microsoft website in the link below, click on download tool now, run the setup on the file downloaded, select the option to 'create back up media for another PC', and select USB and Windows will create the iso media. Click to expand.Unfortunately not, and the Windows 10 home key will remain in the BIOS.

Win to flash serial key