I can walk you through it. You can open a terminal with Ctrl+Alt+t. Once Terminal is open type Code: lsblk -f . Cope & paste output here, so we can review it.
Thank you, verndog, here is what I got Code: NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINT loop0 squash 4.0 0 100% /snap/core loop1 squash 4.0 0 100% /snap/gnom loop2 squash 4.0 0 100% /snap/core loop3 squash 4.0 0 100% /snap/snap loop4 squash 4.0 0 100% /snap/snap loop5 squash 4.0 0 100% /snap/vlc/ loop6 squash 4.0 0 100% /snap/snap loop7 squash 4.0 0 100% /snap/gtk- loop8 squash 4.0 0 100% /snap/gtk- sda └─sda1 ntfs 50383E07383DEC9A sdb └─sdb1 ntfs New Volume A434486234483A16 sdc ├─sdc1 │ vfat FAT32 8246-DE7F 505.8M 1% /boot/efi └─sdc2 ext4 1.0 01ae686c-32d7-48cb-9faf-7bfc1b352311 212G 4% / In post #1 there are two pictures that show more, if that can help...
All I did was getting a second SSD to install ubuntu next to Win in my computer, to see how it works for me. And as in all the numerous previous attempts in the past 18 years, Linux makes a mess of things, by doing things no one asked it to do. This time, grub simply imposes itself over all booting, and as many times before I wasted many hours trying to stop Linux from messing with the rest my system. I do not have time for this kind of effort. So thank you very much for trying, but I am sick and tired of spending hours on fixing things, that used to work just fine. I will simply unplug the power supply for that SSD, until I want to actually use ubuntu, or until I decide to simply wipe it and use it as another storage for windows. Thank you, I apologize for having wasted your time...
I personally like to use Hot Swap Cages that uses up 2 in 5.25 bays that will 3 3.5 HDD or SSD that I can turn on and off independently that solves your issue. You can shut off the Windows drives before installing Linux on it's own drive so it will not screw with your Windows OS!! You can even install Windows 7 and Windows 10 on separate drives by turning the other drives off so it doesn't interfere with Boot Managers.
Thank you, never heard of them before... They seem to cost around $100 ? To try out an OS that for the past 20 years never did anything except p... me off? If you want to see something funny: go to amazon.co.jp and search for "Hot Swap Cages".
Thomas follow Tito's advice. Even if you don't want Ubuntu now, it will pave the way for future installs.
I did not mean to insult you, but it has been my experience over almost 20 years now, that the only reason I need help in the first place is, that Linux always does things that no one asked it to do ! Think of the time you wasted in this thread trying to help, then you can imagine how much time I must have wasted. There is a huge book called "linux Bible". They also recommend installing on a separate SSD, but there is not a word, that this will override the Windows bootloader, and ogf course when contaced, you get no answer...
Virtually none of the regular programs are dependent on the underlying partitioning scheme. However, if you're relying on Windows Loader by @Daz for activating the Windows 7 instance, then only you have to stick with legacy booting. In that case, kindly opt for a SLIC modded BIOS and then transform the Windows installation from legacy to UEFI. A UEFI SLIC loader (like the solution made by @Exe Csrss based on @nononsence's work) will work as well, but you may find it a tad bit difficult since you're dual/multi-booting.
I had an exchange with the support of ASRock and I tried their suggestions. I can set their bootloader to the Win disk and it will keep on booting that one automatically until I boot into ubuntu, which I anyway only use rarely, for try-out. After that chnaged the bootorder, I can reset the bootloader with F11... seems that is the simplest solution ...