Question : Problem: No free memory?

My computer was fine yesterday, but today it is extremely slow. When I try and watch a video in Windows Media Player, It says I have no free memory. Nothing that I know of has changed. Its just slower, and all my free memory is going straight into my cached memory, even just at idle. It is fine in safe mode. I have Windows Vista 64 bit, 4 GB of ram, 2.2 GHz intel possessor, 320 gig HDD, 512 Mb dedicated graphics card. The computer is only a few months old! I cant do anything!  Why is my memory disappearing!? How do I get it back!?

Answer : Problem: No free memory?

1.Type msconfig in Run window, uncheck all startup item in Startup and disable the services you dont need,
.Empty your Pagefile.
.Restart.
.Delete the windows\Prefetch folder.
.Set again you pagefile to System Manage Size.
.Restart.
.Go back to msconfig, startup, then select the possible option to check.

If it doesn't work, repeat it with safe-mode, by pressing f8 after power on

2.* Right click on your C drive
    * Click properties.
    * Uncheck "Allow Indexing Serviec to index this disk for fast file searching".
    * hit OK and let it do its thing

3.* Click Start, then Run.
    * Type in 'msconfig' and press enter.
    * Click on the BOOT.INI tab at the top.
    * Over to the right there will be a box labeled Timeout with 30 in it. Change the 30 to a 3.
    * Also, Check off /NOGUIBOOT
    * Click "OK" and restart
http://www.experts-exchange.com/Virus_and_Spyware/Operating_Systems/Q_23708877.html

4.Download,install and do a complete scan using www.superantispyware.com.
go to the task manager and see what are the services eating up your memory and cpu

2.
8.Restart