Openthe Task Manager in Windows 10 (or Windows 7 or Windows 8 on a legacy system) by pressing ALT + CTL + DEL. Click the Performance tab. The Memory graph monitors your RAM usage in real time. Task Manager showing RAM usage. A good rule of thumb is that if the Available Memory is less than 25 percent of your Total Memory, a RAM upgrade will ClickMax-Out Memory below the RAM info. This shows you exactly what you can replace the current amount of RAM with, and what the maximum amount of RAM would look like. For example, if your PC can take up to 16 GB of RAM and currently has 8 GB (4 GB in each slot), you can remove both 4 GB sticks and replace them with two 8 GB sticks. NblzC.

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