OK IN PLACE MIGRATION ...WHEN AND IF, SOMETHING GOES WRONG AND YOU CANNOT BOOT TO WIN 10...YOU MIGHT BE ABLE TO GET SOME TOOLS WORKING FROM THE BOOTABLE MEDIUM IN A USB OR DVD OR OTHER EXTERNAL SOURCE.
THAT MIGHT BE HARD DONE, IF YOU JUST SELECT UPDATE TO WIN 10 FROM YOUR WIN 8.1 VERSION...ALSO.
AND IF YOU NEED THE DVD TO GET HELP....AND YOU PUT THAT OR IT AUTO PUT IT IN A DOWNLOADS FOLDER OR MEMORY....HOW DOES ONE GAIN ACCESS IF ALL GOES BELLY UP TO RESTORE OR MOVE BACKWARDS..IF YOU GET THE TOOLS TO WORK...IN THAT, I HAVE ISSUES TO.
SO, I HAVE NO UNDERSTANDING OF BUGS..OR VIRUS, OR HACKED IN OR SABOTAGE....BUT, I GOT ISSUES ON MINE...BIG ONES.
JUST SAYING I SHOULD GET MY GLASSES NOW....I NEED A DRINK.