Windows 7: Windows 7 laggy, many programs unresponsive

I previously had this issue
Windows 7 fails to boot, no windows start up screen
(apologize if this belongs in performance and maintenance)
My computer is running better, and starts up every time. However it randomly becomes very laggy. All 3 web browsers experience this problem, along with most any program I have run(office, datalogging programs for my truck...)

I am looking for some help to get my computer back to its normal state.



I filled out my system specs per the thread, and the tool hosted on this site.

I run spybot and have found no issues there. I also downloaded malwarebytes and found nothing.

I found this thread and am walking through the steps just to see if i can find anything obvious, but nothing yet. I am running the seven forums diag tool, but it appears to be hung up on something, i'll let it continue to run.

I am running sfc /scannow and waiting on results also.

*EDIT*

attached diag tool file*

Here is the malwarebytes log

Malwarebytes Anti-Malware 1.65.0.1400
Malwarebytes : Free anti-malware download

Database version: v2012.09.20.11

Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 9.0.8112.16421
Dusten :: DUSTEN-PC [administrator]

9/20/2012 6:23:12 PM
mbam-log-2012-09-20 (18-23-12).txt

Scan type: Full scan (C:\|)
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 286585
Time elapsed: 28 minute(s), 34 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 0
(No malicious items detected)

(end)

sfc /scannow reports
Windows Resource Protection found corrupt files and successfully repaired them. Details are included in the log.

It gives a location of the log, but i can't open the file.

Dusten

For starters....

1. Disable Spybot Search & Destroy..... or better still remove it ..... You have malwarebytes for now...

2. I see you don't have an antivirus installed..... Please install MSE (Microsoft security essential)\

3. Disable Windows Defender service once you have done #2

Let me know how the lagging goes..

Spybot is removed.
Windows defender is disabled, essentials is running a scan now. will report back later

No change. Ran a full scan, with nothing found.

Computer still lags to accomplish any function. Click on the windows pearl and a pause before the menu appears, click in the menu and a pause before anything happens. Open a browser(chrome, ff, IE9) and a pause before it opens. Click in a field to type info and a pause before anything happens. Play pandora or youtube and it constantly freezes the audio and video

alright

open task manager and then go to processes.... and then sort by CPU in descending order.... post a snapshot here

well that only show a CPU usage of 2 %

What i really looking for is when you say that you open some programs and the whole system begans to lag.... ... just look at the CPU and tell me if you see a spike in any other process other than System Idle Process..

There are 2 probable cause... the system would lag....if the HDD is having problems or there could be other processes thats eating up the CPU (probably virus or even a corrupted legitimate processes)

I really don't think its virus related, as I just recently installed this copy of windows, but you never know.

I have task manager open on the side, and I opened several programs, and observed what happened. Firefox will spike it to about 35% or so, but just briefly. I played a video on youtube and ff/flash would both just a bit, but no more than 15-20% total. I opened paint, notepad, word, and various other programs. I never saw a spike above 30-35% and it was all very brief. Nothing pulling a lot of the cpu's resources for any extended period of time.