windows 7 on windows 8 laptop

[pspmixer]

just bought a new acer v5 531 laptop, it came with windows 8 on, this laptop is going to be for a oap family member so I decided to put windows 7 on it as easier to use coinciding he has used xp all his life, so I downgraded the laptop to windows 7 when I come to load the daz loader it works mine but after restart it goes it loop some times and somes shows this red screen ive enabled legacy in bios too how can load laptop in windows 7 with this screen showing first

[sean00]

Daz loader should have a read me txt which covers your problem, if you've not got it search Google for daz loader boot loop, loads of info on how to resolve your issue.