1. Open bitcoin-qt
2. Open debug console, help->about->console
3. type in "dumpwallet <filename>"
4. if above command is invalid try with "dumpprivkey "
well you have a treasure there
I think he can't be able to go on the debug console while he still getting this "error: prune" when using bitcoin core.
What he needs to do is to disable the prune mode just to get rid of the error before he can be able to go to the debug console.
@BitCoinSeo
Look for bitcoin.conf and edit with notepad and then find the "prune=" remove that thing and restart the core.
After that, do what BITDV suggests.
You can find the bitcoin.conf under this
%UserProfile%\AppData\Roaming\Bitcoin\bitcoin.conf
The help here is really great thanks.
The bitcoin.conf file doesn't exist. But I had a look in the apps settings;
Otherwise I can go to advanced settings config and it will create that file by the looks (but it opens empty).