Don't worry as I'll be glad to help, After reading your post, I did go through the Product specifications of your product and found that you have 1 TB 5400 rpm SATA hard drive installed on the PC. And your computer supports 256 GB Value SSD + 1 TB HDD. Click here: http://h10032.www1.hp.com/ctg/Manual/c05493257 to know more about storage, refer to 2 Chapter 1 Product description dual storage.
Hope this helps! Keep me posted for further assistance.
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