Windows 10 Pro Bootloader and Bootmanager on different Disks

I have problem with booting my computer a lot of time and I see true EasyBCD that my bootloader and bootmanager was on 2 different drives.
So all the files in Windows 10 is on the C: drive but the boot files are on a N: drive. Is it something I can do about that.
I have also problem booting from a USB flash drive I have made With Rufus and formatted it as GPT. I have tried windows 7 and 8 but no one will boot.
I have 5-6 hard drives in my computer some of them USB and sometimes the system will not boot at all but when i disconnect the USB drives the computer boots.
I have a UEFI system as you have understand. Is it some software I can Use to fix all the problems or is it someone who can tell me what I can do.

My motherboard is MSI Z87-G45 Gaming I have 2 SSD disk on 250 GB where I have Windows 10 on 1 and Windows 7 on the other.

A screenshot of disk management is needed to advise you:
Disk Management - How to Post a Screenshot of

Please make sure to widen all of the colums so we can see all the data in them.

As far as a bootable USB, RUFUS is about the worst possible way to make one. This is the way to make a bootable USB flash drive compatible with both legacy BIOS and UEFI:
Create a Bootable USB Flash Drive

For step 9, make sure to use the FAT32 file system (read the important box after the step):
9. To format the partition as FAT32, type format fs=fat32 quick, and then click ENTER.

For step 12, just mount the ISO file inside Windows and you will get a new drive letter that opens. Select all the files and folders in the new drive letter that opens and copy them to the prepared USB flash drive.

Its a Norwegian Windows 10 but you can look at the C:drive and the N: drive. There is the problem I think.
And speaking about Rufus, they are speeking about using Rufus all over the internet in support forum and all kind of tech sites.

I would start by physically swapping the SATA data cables between drive 0 and drive 1 (which will probably be SATA ports 1 and 2).

olastoe said:

And speaking about Rufus, they are speeking about using Rufus all over the internet in support forum and all kind of tech sites.

Yep, and whenever someone says, "I can't boot from my USB thumb drive." I ask, "What did you make it with?" The majority of answers I get are Rufus. I'm just speaking from experience of helping a lot of people on this forum. The settings you have to get right in Rufus are too many and too complicated and you have to set them in a particular order to get them to stick.

Ok. Thanks for help. I just used rufus with a windows 8.1 and it could not install it. I will try what you have told me.

And I will stop using Rufus

I have 2 entries of windows 7 as an option when i boot if I boot from windows boot loader in the bios in the boot options in bios, but i can not find out where this 2 entries come from because non of them will boot. Where are this 2 entries. I use EasyBCD but there you can not see them. Is it someone who can tell me where to find this windows 7 boot options when i boot.

Those extra entries in the BIOS list are coming from the partitions you have marked as active on the other drives. You can remove the active flag from them in disk management. You really want only the partition you are booting from to be marked as active, which should be the first partition on drive 0 after you have swapped the data cables.

Thanks for help. I burned a windows 8.1 isofile to a DVD and formatted the other SSD drive to GPT and then it was no problem to install the OS.