How to solve problems after converting gpt to mbr?

Question

Iron

The situation is such that the system was originally on wn8.1, a long story and I had to install win 7. Before installing win7, I encountered such a problem that it does not get up with GPT, then I took all the necessary info. from the disk and formatted it in mbr, deleting all partitions, the disk had raw, after that I made it ntfs. Then rolled 7ku. I was glad until I got stuck with activation, there were also problems, but I solved them, when the time came before the updates, then from the beginning they were not downloaded (problems with the microsoft client), but when I downloaded the updates to upgrade to win 10 (otherwise not like, the key will be lost, but you can’t activate it with a win 7 or 8 key) But the updates don’t get up, and some programs write that there is no access to write / read disk # 0.
Did I do something wrong when formatting or is there a problem in the BIOS?
It seems that in the BIOS I disabled everything that is not needed)
Error due to which updates do not get up 80070643

Answer 1

Error on which updates do not get up 80070643

https://support.microsoft.com/en-us/kb/976982