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 Find out the Maximum Memory Capacity of Window 7 Operating System | Computers & Networking - YouTube How to Find out the Maximum Memory Capacity of Window 7 Operating System | Computers & Networking - YouTube](https://i.ytimg.com/vi/8tz7nK7eX14/maxresdefault.jpg)
How to Find out the Maximum Memory Capacity of Window 7 Operating System | Computers & Networking - YouTube
![Windows 7 / Page File Disabled / 12 GB RAM / 2+ GB RAM free and "your computer is running low on memory" - Super User Windows 7 / Page File Disabled / 12 GB RAM / 2+ GB RAM free and "your computer is running low on memory" - Super User](https://i.stack.imgur.com/IkhmY.png)