When your computer runs slow there's always chance something is chewing up your memory. If you check your task manager, you can see application and memory use as below

Here at Computer Anthem we will show you how to write powershell script to find the application that is chewing your memory, we will also show you how you can automate this script to run every 1 hour. Follow below steps to write, run and automate the script.
  

Step I - Make sure you can run Powershell Script on your Windows 7 PC, if you haven't run powershell script on your PC before, by default it is set to restricted, Click here to follow our tutorial to set it to unrestricted

Step II - Once you have set your Powershell to run the script, copy below script and paste it to your notepad

$a = get-process | where-object {$_.WorkingSet -gt 60000000}
$a | out-gridview

Note: You can change gt value (gt 60000000) above to value of your choice.

Step III - Save your script as XXX.PS1 , save it somewhere to your C: or other drive, for this tutorial i have created folder call Scripts on my F: drive and saved the script on F:\Scripts .

Note: XXX = Name of your choice.

Step IV - Now you need to create a batch file to automate the script, copy below script and paste it to your notepad

powershell.exe -noexit F:\Scripts\XXX.ps1

Note: F:\Scripts\XXX.ps1 is the location and name of your powershell script which you created before.

Step V - Save your script as XXX.CMD, save it to same location where you previously saved your Powershell script (XXX.ps1).

Step VI - Double click on Just created cmd file to make sure your script is working, if you see output as below than your script is running, else there is something wrong with your script or cmd file, make sure you follow above steps carefully to make it work.

Step VII - You have now successfully created running powershell script and cmd file, now you can automate this to run every 1 hour (or any interval of your choice).

                    
                                                                 Automate the Script Steps

Step VIII - Go to start and in the search field type task scheduler and than Click on task scheduler.

Step IX - Click on Create Basic Task as shown below

Step X - Give a name and description to your task and click on Next as shown below

Step XI - Tick on radio button Daily and Click on Next as shown below

Step XII - Give a start date to your task and click on Next as shown below

Step XIII - Tick on radio button Start a program and click on Next.

Step XIV - Browse to the location where you previously saved your xxx.CMD (xxx.bat) on step V above and click on Next as shown below

Step XV - Tick the box " Open the properties dialog for this task when i click finish " and click on Finish as shown below

Step XVI - Make sure you change configure for to "Windows 7, Windows Server 2008 R2 " as shown below

Step XVII - Click on triggers tab and click on Edit as shown below

Step XVIII - Tick the box "Repeat task every" and change value to 1 hour (you can also type the value to any hour) and click on drop down and change for a duration of to Indefinitely.

Step IX - Click on OK as shown below

You have now successfully automated the script to run every hour, you will see below screen every hour with number of application chewing up your memory, close both the screen for your script to run again.