SSDs are cheap nowadays. i7 3770 could be picked up for ~40 EUR. For some reason , DDR3 is kinda expensive here lol. Imo, not really worth to upgrade your machine , already 10 yo platform. Ryzen combos (CPU+MOBO+RAM?) can be picked up pretty cheap.
Apply this registry tweak
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\OneDrive]
"EnableDownlevelInstallOnBluePlus"=dword:00000001