@LoyceV thank you for the response.

Did you load the old wallet.dat into your new Bitcoin Core installation? - How do you mean here, do I just copy the wallet.dat folder into the same directory?

So... I have downloaded the new bitcoin-core QT and it spent the day yesterday updating...

When loading this morning it asked me to create a new wallet... which I did, I backed up the wallet.dat file yesterday but my old coins are not popping up in the new wallet created... What have I missed?

When I used to load the previous versions the coins were just there..

Feeling like I have done something unrecoverable here, any suggestions would be appreciated massively.

Thanks,

Thank you, so I just download a new version and copy over the wallet.dat file and it should be ok?

Thanks mocacinno!

I cannot find the wallet.dat file in the directory any ideas?

I have currently plugged in an old hard drive to my new PC that has an old wallet and coins in, but every time I try to load the wallet I get the following: (I can't upload the image for some reason here?)

A fatal error occurred. Bitcoin can no longer continue safely and will quit.

EXCEPTION:
N5boost12interprocess22interprocess_exceptionE
The system cannot find the file specified.
F:/Wallets/Bitcoin/bitcoin-0.9.1-win\64\bitcoing-qt.exe Runaway Exception

Any help please would be greatly appreciated!