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Your Windows 10 PC will soon be 'junk' - users told to resist Microsoft deadline
(www.express.co.uk)
This is a most excellent place for technology news and articles.
File access across systems is no problem.
It just has to be a separate partition either in the form of a whole SSD/HDD or as a partition on your main drive. Just make it NTFS (a file system that all those OSes know) it works with both windows and linux. I still have 3 NTFS partitions from my dual-boot days.