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.
Have you considered running it in pruned mode?
Can I delete all the blocks, because they take up so much room?
Yes, but you will no longer be able to use it as a wallet if you just delete the files. Also before you delete anything, make sure you have a backup of your wallet.dat
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?
Yes, that should not be a problem.
Sorry to ask questions that have been asked before - I am seriously grateful for everyone's help!
In plain english please!!!
opalbeetle
Hope it was plain enough. If not, feel free to ask more.