SOLVED My desktop and taskbar freezes randomly but mouse still moves. How do I resolve this?

[ACpro]

Hi.

My desktop and taskbar freezes randomly after closing Internet Explorer 9 window or Explorer window but mouse and keyboard keep working and some of the already open applications windows too, like the window chat of Google Talk from which I even can open Internet Explorer through the option history chat.
When it freezes I press Ctrl+Alt+Del. If I try to access Task Manager, it only appears a white window. If I log off and log in again everything starts working again.

I've already tried, according to some forum posts with similar problems, to:
- adjust the voltage of RAM to the ones recommended by manufacturer;
- change drivers of the graphic board, from the ones that came in the disc to the most recent in Nvidia site;
- check Event Log for errors ocurred at the moment it freezes;
- stress test with Primer95;
but nothing resolved or gave me more information about the problem.

My System:
Motherboard: AsRock P67 Pro 3 (B3) (BIOS v2.0)
CPU: Intel Core i5 2500k @ 3.3GHz
RAM: Kingston 1600 CL9 2x4GB @ 9-9-9-24 1,65V 1333MHz
Graphic: Asus GTX550 Ti DirectCU 1GB DDR5
Main Disc: SSD Samsung 830 64GB Sata3
Secundary Disc: HDD Samsung 250GB Sata2
PSU: XFX Pro 550W
OS: Windows 7 Ultimate 64 bits

The computer is brand new (near 2 weeks old) and most of the programs are also installed on my notebook which doesn't have any problem.

How can I fix this problem?

Thank You.

 

[zigzag3143]

Hi.

My desktop and taskbar freezes randomly after closing Internet Explorer 9 window or Explorer window but mouse and keyboard keep working and some of the already open applications windows too, like the window chat of Google Talk from which I even can open Internet Explorer through the option history chat.
When it freezes I press Ctrl+Alt+Del. If I try to access Task Manager, it only appears a white window. If I log off and log in again everything starts working again.

I've already tried, according to some forum posts with similar problems, to:
- adjust the voltage of RAM to the ones recommended by manufacturer;
- change drivers of the graphic board, from the ones that came in the disc to the most recent in Nvidia site;
- check Event Log for errors ocurred at the moment it freezes;
- stress test with Primer95;
but nothing resolved or gave me more information about the problem.

My System:
Motherboard: AsRock P67 Pro 3 (B3) (BIOS v2.0)
CPU: Intel Core i5 2500k @ 3.3GHz
RAM: Kingston 1600 CL9 2x4GB @ 9-9-9-24 1,65V 1333MHz
Graphic: Asus GTX550 Ti DirectCU 1GB DDR5
Main Disc: SSD Samsung 830 64GB Sata3
Secundary Disc: HDD Samsung 250GB Sata2
PSU: XFX Pro 550W
OS: Windows 7 Ultimate 64 bits

The computer is brand new (near 2 weeks old) and most of the programs are also installed on my notebook which doesn't have any problem.

How can I fix this problem?

Thank You.

May be as simple as a corrupt driver. Please downoad and run this free latency checker. http://www.thesycon.de/eng/latency_check.shtml

 

[ACpro]

Hi.
I ran DPC Lantency Checker and it stayed always in the green zone, so I think that means everything was ok according to this program, right?
What else could I try?

 

[zigzag3143]

Hi.
I ran DPC Lantency Checker and it stayed always in the green zone, so I think that means everything was ok according to this program, right?
What else could I try?

Thats correct. Lets run Memtest and driver verifier to verify your Ram and see if we cant find the driver that is mis-behaving


These crashes were caused by memory corruption (probably a driver). Please run these two tests to verify your memory and find which driver is causing the problem.

If you are overclocking anything reset to default before running these tests.
In other words STOP!!!


1-Memtest.

*Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Memtest86+ - Advanced Memory Diagnostic Tool

*Boot from the CD, and leave it running for at least 5 or 6 passes.

Just remember, any time Memtest reports errors, it can be either bad RAM or a bad motherboard slot.

Test the sticks individually, and if you find a good one, test it in all slots.

Any errors are indicative of a memory problem.

If a known good stick fails in a motherboard slot it is probably the slot.

http://www.sevenforums.com/tutorials/105647-ram-test-memtest86.html



2-Driver verifier

I'd suggest that you first backup your data and then make sure you've got access to another computer so you can contact us if problems arise. Then make a System Restore point (so you can restore the system using the Vista/Win7 Startup Repair feature).

In Windows 7 you can make a Startup Repair disk by going to Start....All Programs...Maintenance...Create a System Repair Disc - with Windows Vista you'll have to use your installation disk or the "Repair your computer" option at the top of the Safe Mode menu .

Then, here's the procedure:
- Go to Start and type in "verifier" (without the quotes) and press Enter
- Select "Create custom settings (for code developers)" and click "Next"
- Select "Select individual settings from a full list" and click "Next"
- Select everything EXCEPT FOR "Low Resource Simulation" and click "Next"
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next"
- Select "Finish" on the next page.

Reboot the system and wait for it to crash to the Blue Screen. Continue to use your system normally, and if you know what causes the crash, do that repeatedly. The objective here is to get the system to crash because Driver Verifier is stressing the drivers out. If it doesn't crash for you, then let it run for at least 36 hours of continuous operation (an estimate on my part).

If you can't get into Windows because it crashes too soon, try it in Safe Mode.
If you can't get into Safe Mode, try using System Restore from your installation DVD to set the system back to the previous restore point that you created.

http://www.sevenforums.com/tutorials/101379-driver-verifier-enable-disable.html


Further Reading
Using Driver Verifier to identify issues with Windows drivers for advanced users

 

[ACpro]

Hi.
I ran Memtest (7 passes) and Driver Verifier and neither gave me errors.

Fortunately, while I was working yesterday on my laptop he freezed the same way as my computer. This freeze happened a couple of hours after I installed Internet Download Manager. So I uninstalled this program in both laptop and computer and so far both are working well.

Thank you for your help and sorry for the trouble.
Have a good year.

 

[luiramji]

Good

Don´t know if will work for me but is the kind of answer I was looking for, something professional.

Thanks.