Avoid the JL one - it is a headline maker / loss leader. Avoid Pentium, Atom and Celeron processors - frustratingly slow. Get an i5 as a sensible midrange processor. AS others have said, get an SSD and a good mount or RAM (say 16Mb)
If OP is on Windows 7 then the forthcoming EOL for W10 is unlikely to be an issue. I think Win10 needs an activation code, but these are a tenner if you are prepared to download the media.
Likewise a new version of Office if you must - LibreOffice otherwise.
Also, remember MS are offering an extra year support for Win 10 for £30.
My personal view, not to everyone's tastes, are "If it ain't broke, don't fix it" and if you can, go Linux and escape the Apple / Microsoft ecosystem for ever.
You may find some corporate machines coming onto market soon that wont run W11 - another option
