I am looking at buy a starter PC rig secondhand from gumtree and was wondering if the specs for the PC are good for the asking price, and also I would like some help for if I do purchase the Rig what upgrades should I make? Also I am worried as I don't want to spend money on something that is useless.
Personally I would say no as you can get much better modern systems for a similar price- if this is related to the post that you have added about a gaming pc then you will definitely need to upgrade the GPU which adds about £150 to the cost if you go for something like a 1060. Even if that is all you change then it already costs £750.
The processor is also very old so won't include technologies like hyperthreading, it therefore produces benchmark scores below modern I3 processors on cpubenchmark.
I think that for a similar amount you can definitely find a much better PC.