I have a reasonably new Dell XPS 8900 which is currently using Legacy BIOS boot mode and has a 256GB Samsung SSD boot drive and a couple of Seagate 2TB drives in a RAID 1 configuration as the "D:" drive which I use for redundant backup and storage. It's currently running 32-bit Windows 10 Professional with all drives formatted with the MBR file system. I'm going to upgrade to a new Samsung 960 EVO 1TB boot drive with NVMe and it supposedly needs UEFI activated to work at top speed. I'm planning on keeping the 32-bit version of Win 10 Pro and (since none of the drives are over 2TB) the MBR file system scheme. The new Samsung SSD will be the boot drive. My question is, since I apparently have to use the UEFI BIOS setting to make the SSD work right, will I have a problem continuing to use the 32-bit version of Windows 10, as well as the MBR file system? According to Samsung the SSD will work in Legacy BIOS mode but I won't realize the performance boost given by the NVMe technology, which they say can only be activated by using the UEFI BIOS boot mode. Thanks & standing by...