Hello,

Others have given good advice on narrowing down the issue. I’ll just say that I don’t think you’ll ever get stability with 8gb for win 11. Ubuntu is going to struggle sometimes with the 4gb left for it too.

I would look into upgrading the ram first. Old laptop ram can be very cheap. I doubled the memory in a laptop for my mom by adding a 16gb stick I got on eBay for $20.

If it has an empty slot just buy an exact copy of the module it has and it will probably work. If both slots are occupied you’ll have to do some research to find the correct modules and it might not be worth the money and hassle.