Unfortunately MS hasn't done much with NTFS so there shouldn't be any issues. Saying that though especially with users being the beta testers now more so than every it's likely that the amount of users dual-booting 7 and 10 and identifying the issue as an NTFS compatibility issue and reporting that to MS and it getting fixed is likely incredibly low. Best to keep it disabled, I yank the cable or disable in the BIOS in my test desktop (Q9X50) for the other SSD when booting between 2000,XP,11,Fedora,etc). In my new living room PC I dual-boot between fedora and 11 and don't disable and haven't had any issues yet but there's always the potential with each new update.

Not sure I see the point of dual-booting between 7 and 10 unless you are using 7 32bit and XPDM or if a device driver doesn't work in the other.

Most issues come down to hardware and drivers, things Windows can't do anything about so make sure those are sorted. For old hardware built-in Windows drivers may not be preferred and you may have to install newer or older drivers.

DosFreak wrote on 2022-10-21, 22:10:

Not sure I see the point of dual-booting between 7 and 10 unless you are using 7 32bit and XPDM or if a device driver doesn't work in the other.

I have a few games that work in Windows 7, but not 10. I've been considering doing a Windows 7 and 10 dual boot because I don't want another computer taking up space just to play a few games that don't work in 10. I also looked into getting an old thin client or laptop, but couldn't find anything cheap that met the system requirements.

Disabling drives in the BIOS never worked for me- W7 and 10 kept stubbornly seeing them either way. No idea if this is my legacy, non-UEFI BIOS, but it would have been yanking cables from that point onwards or, what I did, cross fingers on first boot and disabling them at the OS level.

Anyway, same as Ensign Nemo for me: compatibility with (older) games just isn't as good (or at least 'different') with W10 and, for my older hardware at least, W7 is just a more pleasant experience (also, I dislike virtually every design change MS made from W8 onwards, but this is subjective of course).

I'm still wondering though via which mechanism 'Windows A' is able to pass instructions to 'Windows B' between boots: as I mentioned, the scenario where Windows 10 crashed and had Windows 7 (which boots by default) perform a checkdisk routine on it's C:-drive in stead of it's own has happened a couple of times.

I've been running a dual boot of W7 and W8.1 on an old laptop, with a single SSD, and 3 partitions - one for each OS, one data partition. No issues. Can't see why it would be different with W10.

Been running a dual boot Windows XP and 10 for years, Its set up this way:

512GB SSD - Windows XP - 32bit
512GB SSD - Windows 10 - 64bit
2TB HDD - Windows XP installs
2TB HDD - Windows 10 installs and drive images for both OS SSDS

Never had any problems. I don't share the installs between OS' except for benchmarking software. Everything else gets a separate install on its own supporting data HDD. Both OS' can see and access all drives.

Ensign Nemo wrote on 2022-10-22, 01:23:

I have a few games that work in Windows 7, but not 10.

Just curious but which games?

Shponglefan wrote on 2022-10-25, 16:09:

Ensign Nemo wrote on 2022-10-22, 01:23:

I have a few games that work in Windows 7, but not 10.

Just curious but which games?

I love flight sims, but a lot of the ones worth playing are built on really old engines. The main one that I'm having trouble with is Battle of Britain II: Wings of Victory. Despite being really old, a lot of people say that it does some things that the newer ones don't. It's supposed to have really good AI and supports more aircraft in the air at a single time. The latter is important from a historical perspective as the Battle of Britain often had hundreds of aircraft in the air at one time. Newer flight sims continually improve the graphics and flight models, but this comes with a large computational cost and they can only support a few aircraft at a time.

I have some other older flight sims that I would like to try, and I suspect that they might also have issues. However, I might need to go back to XP to get them to work.

I've also had trouble with Mirror's Edge and Rocksmith in Windows 10. Rocksmith is a game for guitarists that actually measures how well you play the songs. There's not much else like it, so it was frustrating when I switched to Windows 10 and it stopped working. I think it's patched now though.

I have others marked as not working in Steam, but I'm on my lunch break, so I can't look them up. I can when I get home later.