Hi ThIs DEFINITELY MEANS YOUR HARD DRIVE IS SHIRT OF SPACE NOW BY NO MEANS YOU CAN INCREASE THE CAPACITY OF YOUR DRIVE, BUT THERE IS AN ALTERNATE SOLUTION.FIRST OF ALL YOU MAYUSE A COMPRESSION UTILITY TO COMPRESS THE FILES YOU USE LEAST OFTEN.I RECOMMEND WINRAR FURTHERYOU MAY DOWNLOAD AUSLOGICS BOOT SPEED AD USE ITS DRIVE CLEANER TO REMOVE UNNECESSARY FILES SUCH AS TEMP AND LOG FILES JUNK FILES ETC.IT HAS A DUPLICATE FINDER WHICH WILL ALSO HELP YOU. IN THIS WAY YOU CAN RECOVEER LOT OF SPACE. THANKS

Yes that means that it has 14% space left. Your only option is to delete/back up files off of it to a different media. If you go to my computer and right click the drive and select properties it will tell you exactly how full the drive is. If you need any further assistance please let me know. If you find this information helpful please take the time to accept/rate my solution accordingly and I can continue assisting you as well if you need it.
Thank you,
Lee

Base from the description of your problem YES it is already running out of hard drive space so what you can do here is to remove some files that you don't need from this hard drive to free some hard drive space.