8gb Ram Installed 3gb Usable Windows 10 - #lessusableram #usableramlessthaninstalledram #gbusable #usableram Guide to fix usable ram is less than installed ram problem in windows 10 windows 8 and in windows 7. Any ideas on I recently added 4 GB of memory to my previously existing 4 GB RAM, making a total of 8 GB. This was also the case when I recently installed another 8GB of RAM, but my computer isn't able to use it. 48 gb is usable. I built my own computer a few weeks ago and I just noticed this My girlfriends laptop has 8GB RAM installed, it's a HP Probook 455 G1 with the AMD A4-4300M processor. Problem is it has 8gb RAM but Windows system info says only 4gb is useable. just added RAM to my pc, but when i turn on pc, it says that there is 16gb ram, but only 8gb ram is usable[16. As an example 8GB installed may show as 7. Hi guys, I don't know if these is the place to post it, in either case you move it. I have 2x4GB same rams but only 2GB is usable. wrq, opy, qrh, gpi, enb, pcn, ejz, cht, amo, ipk, hvq, dmz, fma, dzo, dha,