What to do if Windows 7 does not start?

Question

Windows

Hello.
Today I installed Linux Mint 19 - it starts, but if I want to start WIndows 7, then I have:
First, something incomprehensible is written and at the end ".... recalc checksum ...." and waiting 30 seconds.
Then something else incomprehensible is written and again waiting for 30 seconds. After that, it says something about Windows and then the console appears grub>
. It also writes something about partitions ...
In general, all I can show is partitions:

There are no disks with WIndows 7. I can boot under Linux Mint 19.
How can I make WIndows 7 run without discs?
UPD1: Grub is trying to start WIndows 7 from sda1.

Answer 1

Try to boot not from sda1, but from sda2. Judging by the screenshot, that is where the system is located.