I work away from home for weeks at a time, and I hurriedly set up my server on my last day at home last month
I got a free PC, and a 10tb HDD. Lenovo uses a stupid special cable to run sata drives off the motherboard, I didn’t know there were two sizes, bought the wrong size and said removed it so I installed windows on the same drive and same partition I now have 4 tb worth of media
Now I want to move to Linux as my server OS, I got another PC that actually has the ability to run multiple HDDs
Can I access the files on this drive from another OS? Is there a way to keep these files without transferring it all to another HDD?
You can mount NTFS from Linux. You do not need anything from Linux to do it.
In theory, you could continue using NTFS. I would not. Get those files off to somewhere else and reformat with something Linux native.