OK, if I'm reading this right, you have about 1.7 gB of memory being used in Task Manager.
Is that correct? I presume that you're getting your numbers from the Memory chart in the Performance tab?
If that is so, let's have a look at Resource Monitor's Memory tab. There's a link to Resource Monitor at the bottom of the Memory chart in the Performance tab of Task Manager - please click on it.
Then click on the Memory tab - That'll tell you what's running in the background and there's also a nice little chart that shows the usage of memory (and shows the hardware reserved stuff - more about that in the next paragraph).
In addition to several different types of memory being measured (see the other numbers in the Memory chart)., there's also a difference between memory used in physical memory - and that being used in virtual memory.
And, as TairikuOkami states, there's also address' that are reserved for physical devices
Finally, there's also other memory in the system - video, motherboard, CPU cache, etc and each one operates on it's own set of rules.
The reserving of address' also reserves the physical memory space that those drivers would occupy - but that leads us to a discussion of paged vs non-paged and I'm not prepared to delve into that mess!
If you have questions about this, then a screenshot of the Memory tab of Resource Monitor would help our discussion.
Computer Type Laptop System Manufacturer/Model Number Samsung/NP780 OS Win8.1Pro - Finally!!! CPU Came with the laptop (i7 of some sort) Motherboard Pretty sure that it has one, but haven't checked inside the case! Memory upgraded to 12 gB from 8 gB Graphics Card has switchable - Intel/ATI - Used wrong drivers, now ATI card is inop :( Will have to fix it soon! Sound Card I'm nearly deaf, so this isn't used often Monitor(s) Displays Touchscreen on laptop/32" Toshiba on HDMI (laid the Sharp TV on a mouse and cracked the screen!) Screen Resolution 800x600
Keyboard Microsoft Natural - the same one I've used since it orignally came out around 1995 Mouse no Mouse - Trackball!!!! PSU Why do we ask this for laptops? Case Silver with a neat Samsung logo Cooling sub-par, gotta get around to working on it soon Worked on it - still sub-par! :( Hard Drives One Samsung 1tB drive - 5400 rpm. Gonna switch to a 7200/10000 rpm or an SSD (if I can find $500 for a 1tB SSD!)
- Switched to 500 gB Samsung 840 series SSD - WOW!!! Internet Speed too slow when I'm waiting for a download to finish Browser Yes, I use this (Firefox mostly, w/IE next most) Antivirus Windows Defender and Windows Firewall Other Info I'm handsome and a snappy dresser :0)