Thank you all for your valuable insights and assistance. I plan to take the next few days to explore refurbished laptops online, based on the advice you've provided. Once again, a big thank you to each one of you for your help!
Look for the business class models, for example Dell Latitude, HP EliteBook because they are durable and their components can be accessed easily even if you can change with SSD on your own if you want to increase the size of memory.
I don't know how the quality of refurbished products but the offline store is the best to buy such things, I remember once I bought Latitude when my PC needed to be repaired which took a week so I bought a refurbished laptop from the guy to do my things and surprisingly it still works. I don't know if the performance is still up to the level or not cause never used it for performance-related tasks but it runs even today that matters.
I have purchased from
apple refurbished= costly
dell refurbished = some good deals
ebay = some very good deals
Newegg = some very good deals.
At the op you can do a fresh install so you don't worry about malware.
open the refurbed gear make sure it works
down load this program
https://www.magicaljellybean.com/keyfinder/take the gear off line
open the key finder find the good key
for the windows 10 or 11
copy the key.
turn the gear off pull the drive out put in a 1tb samsung ssd.
install a fresh windows
use the key you copied. and boom a laptop with a clean windows install and a good key.
you kind of want the gear to have 16gb or more ram
and 6th gen or better Intels i5 or i7.