I've been searching around to figure out the exact purpose of the MSR, and have found frustratingly little information on what exactly it does. Microsoft considers it a vital partition, but I'm unclear on why. So basically I want to know: if I remove the MSR from a non-boot disk, will it render the rest of the partition unreadable in Windows?
If it turns out that it just provides extra functionality for Windows, but that I can still access my data on a drive without it (which seems to me the likeliest scenario, since otherwise it would appear that all disks that weren't partitioned on Windows are unreadable on Windows!), then I'd prefer to remove it. I run Linux nearly full-time and boot into Windows only a few times a month--Windows exists on my main boot drive where I plan to keep the MSR intact. I'd just like to remove unnecessary partitions from my secondary disks.
If it turns out that it just provides extra functionality for Windows, but that I can still access my data on a drive without it (which seems to me the likeliest scenario, since otherwise it would appear that all disks that weren't partitioned on Windows are unreadable on Windows!), then I'd prefer to remove it. I run Linux nearly full-time and boot into Windows only a few times a month--Windows exists on my main boot drive where I plan to keep the MSR intact. I'd just like to remove unnecessary partitions from my secondary disks.