Solve : Win 10 stops opening?

1.	Solve : Win 10 stops opening?
Answer» I have a duo system on separate hd's, Win 10 on new SSD hd and Win 7 on a older Sata hd. I CHOOSE via the Bios on which I want to use for the day. Lately, when i choose Win 10, I see the revolving loading circle and the next thing I see, win 7 appearing. I cannot understand what is GOING on here. Is my new SSD at fault, the Bios screwed up or what. I did GO through the Repair mode with my Microsoft tool program and it worked only for one day. Does anyone have any suggestions?to be rude, I would say stop using dual boot. But, I would say that something is WRONG with the mbr record on one of the disk. In the bios you change priority of disk I presume? It's not really necessary to do that since both os know to do dual boot (first older os, then newer). Anyway...I would check that mbr boot records...

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