Not sure anything really helps here SRS but I'll ramble on anyway...

After my (Asus and intel fwiw) laptop fell out of warranty (like many these days, you have to prise the case off - no easy access) I replaced the always sluggish drive it came with with a ssd. This is Linux primary OS and uses the GRUB2 bootloader but does dual boot into Windows 10. I've not noticed any problems with dual booting. I've nothing else dual booting atm. But I think you are looking at sharing programs? Data is the only thing I might want to share and that is one way. Linux can read/write ntfs but Windows does not recognise ext4 partitions.

I am currently toying with replacing the living room computer which is getting a bit old and one does start to worry about breakdowns. This (yep Linux again but we are talking hardware) does all sorts, it has a tbs quad satelite tuner in it (little used now but at one time we recorded more programs) which I would transfer, is handling 5 IP cams, retrieves and stores email from assorted accounts, manages the two printers, can be used to view recorded tv from mythtv on the living room tv, etc. If it happens, it's likely to be a home built job based around a mid range AMD4 processor. It would have 3 hdds but it's unlikely I'd use an SSD. They cost more and fast booting or quick user responses are not priorities. I'm just hoping for another box that will run for months 24/7 without reboot.