I'm sure a computer geek could sort it out in minutes but who do I take it to. I'm sure the local computer so would have a field day when they click on the images and see me romping with dozens of naked women
You could get a geek to come to you
I suggest a bloke rather than a burd
Try & suss out if he's a bit of a geezer
& have him work on your two PCs in front of you with him connecting nothing of his to it / them
Level with him as to what you need doing / why & wedge him up extra in cash
Romping with dozens of naked women is quality behaviour
As long as no laws broken cant see any issues
Unlike when Gary took his computer to PC World [i bet the staff there nearly fell over]

One option is to pay a geek for advice over the phone
You describing the problem & what you are doing
This may work without the geek seeing your huge porn stash & hookering exploits
Could be something minor which you are doing wrong
A work around could be to upload everything to online storage from your old PC
[its cheap as chips these days for 250gb / 1Tb / 2Tb etc]
You should be able to leave the upload running
Then access the online storage from your new PC
Try on some files & see if you can open
If you can open then carry on & you can also download onto a new drive from the new PC