Find out what type of drive it is. Normal spinning or solid state ssd. The later being more reliable.
Yer can easily put a biggerer drive in. Transfer old drive content to new.
Not sure why yer gorra nuvva machine. Old one just needed a keyboard if eye remembers correctly.
Yer best to have all yer files on yer phooter. Then have two separate backup drives. Make a regular backup to both, in case one fails. Cloud options are available. Some are free but only for a short time or limited space.
Blokey int shop said first of all, as the pooter really is tatty, (apart from the fecked up keyboard, the power input is held together with packing tape, the hinges are visible, the screen surround is cracked in two places, the mousepad thing is worn, the battery holding in clips, one has bust, etc) it would be simpler to transfer the drive into another pooter.
So I left it with him to do, having paid for the new pooter.
When I went back to see him he was saying it would be too tricky to swap the drives and there was a risk of "deletions" so he would just transfer all my stuff from one drive to the other.
So I left him with it again.
The new drive is not SSD, it says HDD on the label. So like my old one only less storage.
As I mentioned I already have the WD My Drive thing which functions fine, I have a 90 gig separate hard drive and as i am keeping the old pooter I can keep the originals of my old files on it as now, having uninstalled the keyboard, it works fine with the plug-in keyboard.
Like a kid buying a car, I have been a mug. fortunately it hasn't cost me much and I have bought myself the time I need to be able to think about all this a bit harder.
Every day is a school day!
And thanks again for all your help.