So I have this Samsung RV510 laptop with 4.00 gb ram 500gb hard drive with celeron(R) dual-core cpu T3500 @ 2.10ghz 2.09 ghz basically it hasn't been used much since bought years ago and now we have a reason to use it was running really slow so I used the system restore to format the laptop but it was still slow so I had it checked they said it could be the ram, hard drive or the software so I got brand new ram for it and it worked good for like 2 days and now it gone back to being slow and not responding when trying to open things. Before I go any further start buying things I was wondering anyone could help me with what I could do before spending money that I probably don't need to spend.