Win 10 needs 2GB, It should run. On that system you aren't going to be running the latest games cranked up anyway.
What are you trying to run that you cant? I ran win 10 on my 8400, TI-550 4GB and it was fine, Though i did a fresh install of win 7 because i use the comp to run some software that has issues with 10, but it seamed to work just fine. any game i tried to run was at least 5 years old, But i did run battletech which eats resources and is CPU heavy and the game worked. that is from 2018, and the comp was all under min specs.