I have an Acer Travelmate 7750G laptop that keeps randomly freezing every month or so. This has been an ongoing issue since new. The machine was purchased with Windows 7, upgraded to Windows 8 and now Windows 8.1. Drivers are from Windows updates.
Here's how the system freezes occurs:
- I would be using a program, more likely Chrome, just general browsing, nothing in anyway resource heavy like streaming media.
- Suddenly the machine stops responding, a totally freeze. No mouse movement, no <Ctrl> <Alt> <Delete>, no screen activity, no HDD activity (LED not blinking).
- Pressing the power button once does nothing.
- Pressing the power button for several seconds, powers down the machine.
- Press the power button on and Windows 8.1 recovers ok.
I completed the following hardware tests and actions:
- Replaced memory and tested for a few days using with Memtest86+, passed.
- Tested CPU with Prime95, passed.
- Tested HDD, passed.
- GPU test, passed.
Here is a copy of event viewer just before and after (note, a previous shutdown did not happen as event viewer suggests):
Information 25/02/2015 11:25:42 Microsoft-Windows-Ntfs 98 None Volume \\?\Volume{0d985345-5059-11e2-be65-806e6f6e6963} (\Device\HarddiskVolume1) is healthy. No action is needed.
Information 25/02/2015 11:25:42 MEIx64 2 None Intel(R) Management Engine Interface driver has started successfully.
CRITICAL 25/02/2015 11:25:41 Microsoft-Windows-Kernel-Power 41 (63) The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Information 25/02/2015 11:25:41 Microsoft-Windows-FilterManager 6 None File System Filter 'npsvctrig' (6.3, 2013-08-22T11:38:22.000000000Z) has successfully loaded and registered with Filter Manager.
Information 25/02/2015 11:25:37 Microsoft-Windows-Ntfs 98 None Volume C: (\Device\HarddiskVolume3) is healthy. No action is needed.
Information 25/02/2015 11:25:34 Microsoft-Windows-FilterManager 6 None File System Filter 'WdFilter' (6.3, 2014-07-10T02:42:59.000000000Z) has successfully loaded and registered with Filter Manager.
Information 25/02/2015 11:25:34 Microsoft-Windows-FilterManager 6 None File System Filter 'Wof' (6.3, 2014-03-13T08:27:29.000000000Z) has successfully loaded and registered with Filter Manager.
Information 25/02/2015 11:25:34 Microsoft-Windows-FilterManager 6 None File System Filter 'FileInfo' (6.3, 2014-02-22T12:13:10.000000000Z) has successfully loaded and registered with Filter Manager.
Information 25/02/2015 11:26:03 EventLog 6013 None The system uptime is 29 seconds.
Information 25/02/2015 11:26:03 EventLog 6005 None The Event log service was started.
Information 25/02/2015 11:26:03 EventLog 6009 None Microsoft (R) Windows (R) 6.03. 9600 Multiprocessor Free.
Error 25/02/2015 11:26:03 EventLog 6008 None The previous system shutdown at 11:05:14 on 25/02/2015 was unexpected.
Information 25/02/2015 11:25:33 Microsoft-Windows-Kernel-Boot 32 None The bootmgr spent 0 ms waiting for user input.
Information 25/02/2015 11:25:33 Microsoft-Windows-Kernel-Boot 18 None There are 0x1 boot options on this system.
Information 25/02/2015 11:25:33 Microsoft-Windows-Kernel-Boot 27 None The boot type was 0x0.
Information 25/02/2015 11:25:33 Microsoft-Windows-Kernel-Boot 20 None The last shutdown's success status was false. The last boot's success status was true.
Information 25/02/2015 11:25:33 Microsoft-Windows-Kernel-General 12 None The operating system started at system time 2015-02-25T11:25:33.498661300Z.
