One way to free up wasted disk space is to use the Disk Cleanup tool. 

 To run the Disk Cleanup Tool, click on Start and then click My Computer.

  Right click on Local Disk and then Properties.

On the General Tab, click the Disk Cleanup Button.  Disk Cleanup will spend a few minutes examining your disk.

The Disk Cleanup dialog box will appear.  Select each of the check boxes in the Files to Delete list, and then click OK.  I  usually check everything except Compress Old Files.

When prompted, click Yes.  Disk Cleanup will spend several minutes removing these files, which will provide you with more space.

      Turn off the monitor, it is easier to see where the dirt or dust is.

      Use a dry, soft cloth and very gently wipe the screen.  Microfiber type cloth is the best (like you use on your eye glasses).  Do not use paper towels, toilet paper, or something like your shirt!  These items can scratch the screen.

      Do not press harder on the screens to get the dirt off.  Pushing directly on the LCD screen can cause pixels to burn out.  Email me and I have a special cleaner that I use.

      Never spay liquid directly on the LCD screen.  It could run inside the monitor and cause damage.

         I have microfiber clean cloths available if you would like one.