Windows 10: Windows 10 64 Bit only 4GB Ram Usable?

Ravenfaust, in the screenshot above, how much ram do you have installed? Both the screenshot and Speccy show 4 GB. If you have 8 GB installed, go into bios and see how much ram bios shows.

 

In case BIOS reports 4GB RAM, then the two modules and incompatible. Trade one of them with another module from a friend, or in worst case, just buy a new module. If BIOS reports 8GB but Windows report 4GB, then something is wrong with this version of Windows. To find out, use a Linux Live CD to see if it reports 8GB. You can also use the 64-bit version of Win10PESE. If they do report 8GB RAM, then you may have to upgrade the chipset drivers in your current Windows version to properly identify the RAM. If anything fails, unfortunately you must backup all your files and then format (clean-install).

By the way, I saw "Windows 10 Insider Preview". Which version is that? Have you tried the latest official build (10586.318) ?

Just saw your Speccy report more carefully. Have you seen the RAM section? It reports 1 used slot and 1 free, while you should have both slots occupied. Have you tested your modules at both slots? If you install only one module, does it works in both slots? Maybe one slot is faulty!

 

I removed the sticks of ram becuase they were not working.. going to try WINPESE and see what happens. where can i update the chipset? I have the latest version of the preview build. But before installing this, i had windows 10 fresh install ,and it was only using 3gb of 4..

 

Here is the speccy info http://speccy.piriform.com/results/D...5ucOoVMzMvryHS

 

Something is weird about your RAM. Now Speccy reports both slots occupied, 8GB RAM total but physical only 3.57GB? Are you sure there is no application limiting the usable amount of RAM? Have you checked for malware? I recommend checking with one or more of: Malwarebytes Antimalware, Spybot Search and Destroy, Spyhunter etc. Install the application, update the spyware definitions and then restart in safe mode to run it, to make sure no spyware is loaded that may affect the scan. Let it do a full scan including memory and Registry and files and then remove everything found.

From the report I see it is either an HP notebook or HP desktop computer. So visit HP support site and download latest BIOS and utility for your model.

EDIT: I have recently found that some BIOS settings (regarding CPU and RAM) can affect RAM usable RAM size in Windows because of some incompatibility. Make sure you restore BIOS settings to default. If there is a BIOS update do it.