My below 2 counters are contineously hitting the TOP1.) Avg disk queue length2.) Page/Secand 3rd the "Avg Disk read queue lenght is also performing bad although not hitting the TOP"Someone suggessted meFind the application that is using all your memory. Open Task Manager, select the View menu and pick Select Columns. Add "Virtual Memory Size". Sort by Virtual Memory Size and Memory Usage to see which processes that uses a lot of memory. Consider restarting the services for the corresponding processes and see if that improves the situation.I did exactly the suggesstion but Idont find any application who is taking more load.the top most isexplorer.exe 17,044kmmc.exe 15,052KKindly suggest me how can me counters(Avg disk queue lengthand Page/Sec) come downThanksZAHID HASEEBHaseeb

Hi, Please understand that the forum is for Exchange related issue. For system performance issue, I suggest you post your problem based on your Operation System: Windows XP: http://www.microsoft.com/windowsxp/expertzone/newsgroups.mspx Windows Server: http://social.technet.microsoft.com/Forums/en-US/category/windowsserver/ Windows Vista: http://social.technet.microsoft.com/Forums/en-US/category/windowsvistaitpro/ Mike