New SSD, W7, won't let me install Tools for MR

Lost a HDD (W7). it died and I had no Backup. Installed a new 500 gb SSD, staying with W7. I need to install my MR816x. It has worked beautifully on W7 for a long time now. When I insert the Tools for MR disc, I get an error that says “OS is inadequate to run this software…install aborted”…something like that…What !?? Anyone ?

Maybe you could try the latest tools rather than the ones on the install disc? I would assume the disc shipped with older software than what is here:
https://www.steinberg.net/en/support/downloads_hardware/downloads_mr816.html