There are certain things you can do as users, to maintain the functionality of your system in between service calls. These procedures are called Preventive Maintenance. They are easy to perform and you should do them periodically.
Some steps involve deleting files.
Please make sure you are only deleting the file types noted. Empty the Recycle Bin. This icon is located on your desktop. Delete .tmp files . It will surprise most people to learn how much hard drive space .tmp files have used.