Size in GBs would be a clue....
If this is the computer....Acer Intel Core i3 Ultrabook S3-391-6046 PC with i3-2367M Processor - Walmart.com
Hard Drive Size: 20 GB is given in the specs
But then there is this....
- Intel Core i3-2367M processor 1.4GHz, 3MB L3 Cache
- 4GB DDR3 SDRAM system memory. The silver Acer 13.3" Ultrabook you the power to handle most power-hungry applications and tons of multimedia work
- 320GB SATA hard drive 20GB SSD. Store 226,666 photos, 97,143 songs or 178 hours of HD video and more
Maybe it's some kind of hybrid.
EDIT: From the web....
How to defrag Windows 8
If it has a hard drive your Windows 8 PC, laptop or tablet will defrag itself by default every week, thanks to the scheduled task: Optimize Drives. So if you haven't changed any settings, you shouldn't need to defrag. But if you aren't sure and you want to check the status of- or manually defrag your drive open Search (Windows+Q or swipe in from the right and open the Search Charm). Now type in 'Defragment'. One of the results will be 'Defragment and optimize your drives'. Select this.
You'll see a dialog featuring a list of the hard drives in your PC or laptop, their media type, when they were last defragged, and how fragmented they are. You really need to defrag only if the drive is more than 10 percent fragmented. (On my severa-years-old work desktop, the two drives were both at 0 percent due to the regular background defragging.)
If you can't see a figure in Current status, to find out if a particular drive needs to be optimized highlight it and hit Analyze. Then confirm your choice. This will update the Current status column.
If any of your drives is fragmented by 10 percent or more, highlight it and hit Optimize. Confirm your choice. Again this could take minutes or hours, and you can continue to use your PC throughout.
Edited by buddy215, 27 September 2014 - 06:31 PM.