HP laptop Pavillion TX2500ea lock up

[Mike01Hu]

Since March this year, my HP laptop locks up with either a blank screen or no mouse or keyboard activity with no way out other than switching off. Under safe mode the machine runs all day and can be used "normally" but when returning to full mode, at some point, maybe at boot time or later when any program is operating, the system stops responding. I have the checked the hard drive for errors as well as using various utilities for memory test with no issues revealed and Event Manager does not show me anything that is suspicious, other than the unscheduled switch off. I have also restored from an image whereupon the machine may work for a few days before the problem re-asserts itself; switching off non-critical services has no effect. The operating system is W7 Pro (32bit) SP1 (upgraded from Vista over a year ago) with McAfee for security and all HP drivers and the bios have been updated. I reformatted the hard drive and installed W7 64bit but the same problem occurs. As the machine functions in safe mode I assume there may be a driver conflict but do not know where to start with any further investigations, so some help would be apreciated.

Mike

 

[usasma]

Let's start with this procedure:

Task Manager:
Also, you can monitor the system for excessive resource consumption. To do this, open up Task Manager by right clicking on the Task Bar.
Then select the Processes tab.
Then select the "Show processes from all users" button (in the lower left)
Then select the View menu item, then select "Select columns"
In the Select columns window, place checkmarks next to I/O Reads and I/O Other.
Click OK to accept the changes.
Resize the Task Manager window so you can see the most of the columns.
Wait for the system to freeze/take up the resources.
Look at all of the columns to see if there's anything that looks excessively high - if so, let us know the Image name of the process.
NOTE: If the image name is svchost.exe - right click on it and select "Go to Service(s)" and let us know the Services that it highlights
FWIW - System Idle Process is supposed to have high CPU readings - anything else with high CPU readings is an issue.

Leave it open on your desktop while waiting for the freeze and see if you can spot the offending process when it freezes (or shortly before).