I bought a PC with 8 GB RAM. I installed Windows 7 in it, and now its showing that only 3.9 GB of RAM are usable? What about the remaining RAM? Is
![How To Fix Usable Ram Less Than Installed Ram On Windows | Fix Less Usable Ram | 3 Best Method 2022 - YouTube How To Fix Usable Ram Less Than Installed Ram On Windows | Fix Less Usable Ram | 3 Best Method 2022 - YouTube](https://i.ytimg.com/vi/Du9yKYgMRz0/sddefault.jpg)
How To Fix Usable Ram Less Than Installed Ram On Windows | Fix Less Usable Ram | 3 Best Method 2022 - YouTube
![Installed memory 2GB (1GB usable): Why can I only use 1GB of RAM? How can I make all 2GB useable? | Shit happens. Installed memory 2GB (1GB usable): Why can I only use 1GB of RAM? How can I make all 2GB useable? | Shit happens.](https://m3rilix.files.wordpress.com/2011/08/lol.png)