@mrgrumpymonkey depends...
Next logical step is some #PowerShell script that downloads a #Linux distro image, repartition the system drive, add some unallocated space at the end, put a #CloudInit config in it and then do an #UnattendedInstall of said system with bcd by calling up #bcdedit to #chainload said partition.
@mrgrumpymonkey it is.
One can repartition Windows installations on the fly whilst running (and even then there are tools like #Wubi that made it easy to setup #dualboot #Linux & #Windows.
I just have neither a #Windows machine nor time and spoons to make such a tool, much less to basically create even said #ProofOfConcept "#Malware"…
@mrgrumpymonkey Obviously I'm not into #MalwareDevelopment (even tho I'd not consider a "#MigrationWare" that forcibly replaces #Windows with #Linux malicious per-se, it's certainly violating #consent and thus is #malware!) simply because that isn't being appreciated in my juristiction and I do kinda need a clean record to be employable in the only field I'm decent in.