My problems with my old notebook must be hardware-related. I tested the same Mint-DVD that I used before on another notebook today - and it worked flawlessly, fast, and smooth like a breeze. Its the notebook my Mum is using.

I planned to just test the Live mode (a demo setup that installs nothing on HD), but when I had it running after 5 minutes

, it worked so smooth and flawlessly that I just hit the install-button on desktop and installed it right from there on top and right into the middle of the existing Windows 7 partition.

Mayxbe not always recommended to do so - but it works.
All needed software comes with this install already, all that she needs, and Firefox that she already knows. I showed her Thunderbird, which looks and works a lot like Live Mail, I installed the usual antiscript-addons and such for Firefox, I updated the OS, and 20 minutes later she was already handling the whole thing all by herself. No more maintenance needed for her (antiVir, Firewall, MBAM, Sandbox,Windows updates that in parts must be deinstalled again, XP antispy and what else you need to run to make Windows a "tight" and halfway secure OS). No data migration needed, since Linux recognises all Windows stuf and files and folders.
Its hilarious, and a disgrace for Microsoft!

This week I really learned how much Microsoft cheats its customers and blinds them and sells us crap that smells beyond what you can believe!
Full setup, complete system, all tuning and addons set. In far less than 30 minutes. With all what is needed: its done, its present.
And just in case: the old Windows 7 installation still is there and can comfortably be switched to, too.
Another Hd is ordered, and when I have those twol new HDs next week, I reinstall as planned, everything. This weekend will belong to backing up data.
Vienna: who laughs last, laughs best.
BTW, the laptop of my Mum boots four times as fast or faster than before, and the browser runs practically without any noticable delay now - click a page, and you are there. Turning the notebook down: 3-4 seconds at best.

That thing is already over two years old and costed less than 550 bucks.
Neal,
consider to split your notebooks partition and go for a dual boot. The one thing I learned this week is this: installing Linux and getting used to the ordinary everyday working routines while using the old Windows data files, is incredibly easy. You could do this: get a Mint 17.2 ISO file, and a tool to burn it onto a bootable DVD (USB sticks can but must not cause troubles sometimes). Use that disc than to boot under Linux in a demonstration mode, and test it. It does not overwrite your existing HD and W10. Once you feel comfortable, install Linux 17.2 from right that demo mode running. You then boot the laptop of yours, and always get asked at the beginning whether you want to boot Linux or Windows. From Linux, you can access all your Windows workfiles - but from Windows you will not be able to see any Linux files. Really, its as easy as this. Just use that demo mode before.