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Random Access Memory (RAM) and Hard Disk Drive Space are entirely different, as this article explains. Article - Understanding Memory (RAM), Hard Drives, and the Difference Between Them
However, if you are having problems, we can help, but we need far more information.
What are your computers specs?
What operating system are you using?
Is your computer factory built or self built?
If factory built it should have a warranty and if it is brand new you should be contacting the manufacturer to put things right as any changes you make could invalidate the warranty.