Hey, recently i've noticed a series of issues arise regarding the speed and overall capabilities of my computer. My computer was running perfectly, then when i turned it on yesterday, i noticed a large decrease in speed. When i tried to open my browser google chrome, it would open for 1 second then diplay a message about memory issues and close suddenly, at first i thought it was just a issue with google so i used internet explorer. When i tried to open my DAW cubase, i was hit again with a error message stating that my memory was too low, which was impossible because for the last year it has been fair more than adequate. I opened a few games (World of warcraft, counter strike source, diablo 3) and all of them presented a series of issues. Now counter strike source wouldn't even open when i click on it, ditto for diablo 3. Though world of warcraft presents a error message stating the following:
=========================================================================== ===
World of WarCraft: Retail Build (build 15595)
Exe: C:\Program Files (x86)\World of Warcraft\Wow.exe
Time: Jul 6, 2012 10:23:54.844 AM
User:
Computer:
------------------------------------------------------------------------------
This application has encountered a critical error:
Not enough storage is available to process this command.
Program: C:\Program Files (x86)\World of Warcraft\Wow.exe
ProcessID: 5144
Function: new
Requested 3179632 bytes of memory

WoWBuild: 15595
Version: 4.3.4
Type: WoW
Platform: X86
Patch data download failed.
Failed to parse patch data from server 'http://enUS.patch.battle.net:1119/patch'
InstallID: 'WoW'
Manifest is valid.

None of this has happened before, also a series of programs on my computer were deleted such as Guitar Pro 6, Axe edit and Pod edit. When i try to log into windows live messager it just stays at the loading page and does not load-in, same with windows live mail.



So far i have tried restarting my computer and going in safe-mode with networking and using Avast, ccleaner and malware bytes to find the source of the problem, it found varios problem, and i deleted/removed them after the scans, but still the problem comes back.

Can someone please help me find this problem ?

Thanks!