Much appreciated, unholycactus!! 

Hi Shorena,

Thanks for your response!

Firstly, I'm afraid I don't know what pruned mode is and I doubt I would know how to run it.
At the moment my priority is to remove Bitcoin and hopefully all the data from my laptop. I don't need to use it as a wallet for the time being. I am not using any Bitcoins right now, so I dont need access to them.

But I do have some and so in the future I hope to buy a larger faster pc or laptop, reinstall Core or perhaps find a different program... and thus recover my Bitcoins. My understanding was that all I really need to keep is that wallet.dat file - because I can always download the blockchain again.

Am I right to think this? Or are there other files I need to keep?

Many thanks

opalbeetle

I'm SORRY to post this because I'm sure the answer is already here somewhere, but I can't find a definitive answer so I had to post anew.

The blockchain is far too big for my poor little laptop now and I have uninstalled it. In the past, I tried to move it to my external harddrive but something went wrong. I am not technically minded and so I ended up reinstalling on the C drive, and thank god it worked and started to rebuild the blockchain. However we don't even have superfast internet in my house and I have never been able to get my wallet up to date. I need to use my laptop for uni work and it is so slow now.

Can I delete all the blocks, because they take up so much room? Am I right in thinking that if I eventually get a new laptop I could reinstall Core, or a different program, move my wallet.dat file over and it will download the blockchain again - even if it takes a long time?

Sorry to ask questions that have been asked before - I am seriously grateful for everyone's help!
In plain english please!!! 

opalbeetle