Ways to Free Up Disk Space on an SSD in Windows 7 and 8..-Trick 1

Disable Hibernate:

 

             It will free up disk space equal to the size of your RAM.

 

             Hibernation is the process of saving the content of your computer's memory to the hard disk, which helps start if faster. Having Windows 7 or 8 installed on an SSD means that it will boot in seconds, so you won't need hibernation anymore. To turn it off you should do the following:

Click the Start button and type "cmd"

Right click the item that appears and select Run as administrator

In the opened DOS command prompt window type powercfg –h off and press Enter

The hibernate.sys file that is used by the hibernation process will be then deleted and you will gain disk space on your SSD equal to the size of your RAM.