Running Windows 7 on my desktop. (MS Word on my Windows 10 Dell laptop is trouble-free.) It constantly freezes (every 3rd or 4th time I save during an editing session) on save or save as....have to reboot the program. Happens on all docs. Looked this issue up online, the "solutions" didn't work for anyone. I uninstalled/reinstalled to no avail....it was solid for 3 days, now back to freezing. Any ideas?