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Windows 7: Strangest problem in windows: even task manger freezing

27 Feb 2013   #1

Windows 7 Ultimate x64
Strangest problem in windows: even task manger freezing

Hi. I'm hoping someone here can help me. I normally consider myself able to fix problems, software or hardware, and I've built my own PC in the past. However, this new laptop has me stumped. I'd really appreciate any help you can give!

The problem:
Sometimes (probably once every two hours or so of normal use) windows will freeze, leaving me unable to access the task bar, windows menu, explorer (and any folders), and even the task manager. However, applications will continue to run (chrome, AVG, sublime text, etc). Eventually everything will freeze, but it often remains working for long periods of time. A small percentage of the time, I can still access the task manager. When this happens, I've tried killing and restarting explorer without luck. I tried restarting and it froze completely.

I can't pinpoint exactly why/when this happens--sometimes things seem to run fine for several days, then I'll have freezing several times in one day. I may be imagining this, but it does seem to happen more frequently when I switch wifi networks.

Also, some of the crashes have hung on very strange things--once it claimed it was the windows logoff sound that was the file that crashed it! Also, once when I left the computer (letting it put itself to sleep), it bluescreened by itself!

Attempts to solve:
I first thought it might be a virus, but a thorough scan (AVG) didn't turn anything up. Next I suspected that something could be wrong with windows 7 ultimate 64-bit, so I installed a fresh copy. However, this didn't fix anything. Next I checked my HD for errors, but that was fine. I've also made sure that all my drivers are up-to-date. I wanted to update my BIOS, but it seems there isn't a newer driver. Also, running in safe mode doesn't seem to turn up this problem, but it is hard to tell (as the error can take a long time to appear). It seems to happen with regular use, not just being left on.

Since this has happened since I first had the laptop, I think it may be hardware over software.
I've attached the logs on errors (there are a lot!). I uninstalled bonjour recently, as it seemed like it was causing many of the errors in the log, but I doubt that will solve the main problem.

If you need any other info, I'll happily add it. Thanks in advance!

Attached Files
File Type: zip (521.9 KB, 0 views)
My System SpecsSystem Spec
27 Feb 2013   #2

W7 Pro SP1 64bit

As an experiment, uninstall AVG and install MSE for a while.
You might also want to run an offline scan:
What is Windows Defender Offline?

And see if the info in these two tutorials help:
SFC /SCANNOW Command - System File Checker
Troubleshoot Application Conflicts by Performing a Clean Startup
My System SpecsSystem Spec
27 Feb 2013   #3

Windows 7 Ultimate x64

I ran SFC /scannow, but it didn't seem to find error. Attached is the report.

Also, I will run windows defender offline.

Attached Files
File Type: zip (2.6 KB, 1 views)
My System SpecsSystem Spec

27 Feb 2013   #4

Microsoft Windows 7 Ultimate 64-bit Service Pack 1

Hello there,would you consider checking your disks condition?What kind is it?Filling out your system specs would be helpful...
My System SpecsSystem Spec
27 Feb 2013   #5

Windows 7 Ultimate 64 bit SP1 x64

When I had a single core processor I found it useful to launch Task Manager BEFORE any problem.

When Disaster struck the Task manager was already available.
I just had to be patient and wait for Windows to see my finger.
I think a single click required that I hold the button down for a couple of seconds,
and a double click was very difficult to achieve.
My System SpecsSystem Spec
27 Feb 2013   #6
Microsoft MVP

Windows 7 Ultimate X64 SP1

You may have some overheating, try blowing or vacuuming the vents and use on a hard surface.
My System SpecsSystem Spec
28 Feb 2013   #7

W7 Ultimate SP1, LM19.1 MATE, W10 Home, #All 64 bit
RAM Check

Have you made sure that all of your components and cables are properly seated in their sockets?

If you are going to play around with your PC's internal components, remember to turn the power off and to take anti-static precautions.

Have you checked your RAM?
RAM - Test with Memtest86+

My friend told me a story about his brother's PC.
He had one faulty RAM stick (which was the upper half of his memory space).
He could use his computer for a while and then it would suddenly go berserk and then crash.
What seemed to be happening, was the PC would fail, once the memory in use exceeded the capacity of the first RAM stick.
My System SpecsSystem Spec

 Strangest problem in windows: even task manger freezing

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