What is the best way to open partition security?

My system is a UEFI based system with 6 physical disks and different instances of windows installed on 4 of those disks (I use F12 during the boot process to select which disk to boot off). On all 6 disks I have multiple partitions. This is a home system with no domain and I'm the only user, so I'm not worried about locking things down from others.

What is the best way to set the security on each of my partitions so that every instance of windows I have will have full access to each partition with no need to provide administrator access or to take ownership. Even though I have set the same userid for each instance of windows the internal details for the user are unique on each instance so they appear as unknown ids when looking at the security permissions from the other instances.

Thanks

There is no way to do that. I'm no expert but each instance of Windows (wherever it is) will have it's own security. All you can do is authorise access to the other disks from the admin on the instance you are running. I'm sure there will be no way of defeating the UAC prompts.

I mean, there will be no way of defeating the UAC prompts which come up when you need to run an app as admin on the same instance, never mind across instances or physical disks.