Look, there is a reason you want to keep on mymonero until the next version, in normal circumstances I would never advice a webwallet for anything but the current version is terrible on RAM and if you have a really old PC like you said it won't even run correctly.
Qs re Monero Windows wallet
Hi All,
Right now my moneros are stored at mymonero.com. I'm thinking of downloading and installing the Monero Windows wallet onto my old Win7 pc. Is this a full node wallet that has to keep an updated copy of the full blockchain? If yes, how big is the Monero blockchain? My pc is old and doesn't have much hard drive space.
Is is the Monero Windows wallet not a full node wallet and does not need to keep a copy of the full Monero blockchain?
Thanks,