Solved: Problems with my PC

I purchased my Windows 7 PC in Autumn of 2012, to use for PC gaming. Recently, I have noticed some problems occurring with my PC. My computer freezes frequently, as does the sound during the freeze. When I try to press Ctrl-Alt-Del, it may or may not work, and if it does, my computer slows to a halt, then after closing down everything, returns to normal. If it does not work, I press the power button on my tower to turn it off. When it turns on, I see the menu asking if I would like to continue as normal, (the menu where there is a 30 second time limit, I don't know the name) and my mouse or keys never work here, so I wait the 30 seconds, and the computer starts Windows as normal. I've tried defragmenting my computer, and I've used the Disk Cleanup. I'd really appreciate some help, and I'd like to know whether it's time to replace some parts of my PC, such as the fan, or sound card. :D





Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 8
RAM: 10220 Mb
Graphics Card: NVIDIA GeForce GTX 550 Ti, 1024 Mb
Hard Drives: C: Total - 1417886 MB, Free - 994952 MB; D: Total - 12809 MB, Free - 1570 MB;
Motherboard: PEGATRON CORPORATION, 2AB5
Antivirus: None