Hey hope some one can help i've got a chimei computer and it's slow always says not responding it dosen't matter what am using it using the internet is nightmare just loading home page can take 25 mins its not internet am with talk talk and when sister comes with laptop internet works fine

Well, assuming you don't have any errors shown in Device Manager, I would start by making sure your system is clean of malware. Please read this then start a new topic here. When done there, please post a follow up note back here.