i screwed up my boot wondering if imaging can save me

long story short i did something that wont let me get into windows 7.

i have windows 10 on a seperate drive on the same computer so i can access the drive from in there.

ive already gone thru the steps to repair it traditionally and they diddnt work.

i have 2 options id like to try before all hope is lost.

1. i have another computer that has win 7 on it, could i create an image of the boot partition on that drive and replace my faulty one with it?

2. could i create an image of my current c: drive, then reinstall windows fresh, then replace the c: with the image?

well it started when I installed 10 on a separate drive (not partition). when rebooting I wasn't getting the is selection screen. I used easy boot disk creator. at that point I was able to get into 7. but after restarting I wasn't seeing the is screen again so I tried the same program to get 10 to show up. but it screwed it up too.

so at that point I tried both the 7 and 10 windows CDs and used the repair utilities. both failed several attempts.

at that point both os
were not loading.

I decided to reinstall 10 since there was nothing to lose yet.

I thought all the boot information was stored on the hidden 100meg partition. am I wrong?

ok heres manager.

when i originally installed win 10 i had all drives still connected

G and F are the drives in question

I was booted in 10 for the picture. c:is win 10. f:is win 7. D and E are larger storage drives

I'm going to go through the 7 drive and backup any important files I'll be needing. then I'm going to try my image idea.

I'll report back if this was a failure or not

ok everything seems to be working now.

i decided to try the repair tool on the 7 cd one more time and for some reason this time it actually worked. why? i don't know. but at this point it wouldn't be worth the effort to find out.

thank you for taking the time to help me out.