Wednesday, 21 September 2016

computer keeps crashing - Computer is crashing or freezing for no apparent reason [Solved]

computer keeps crashing - Computer is crashing or freezing for no apparent reason

i have a fairly new acer computer, which was working fine but started to crash or freeze for no apparent reason.
i couldn't find any viruses and i have done a system restore but the problem is still occuring but not as often.
after it crashes it wont turn
back on properly so i have to unplug the power for a moment to get it to switch back on.does anyone have any tips to help me solve this problem?

Anwsers to the Problem computer keeps crashing - Computer is crashing or freezing for no apparent reason

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Check with Acer Support, their on-line documentation, and drivers.
This really needs to be done since
it is a new computer.

Acer - USA - Service and Support - Drivers

Acer - Worldwide

References to Vista also apply to Windows 7.
What antivirus/antispyware/security products do you have on machine? Include any you have EVER
had on this machine including those you uninstalled (they leave remnants behind which can cause
strange issues).

Do these :
Try these to clear corruption and repair/replace damaged/missing system files.

Start - type this in Search Box ->  COMMAND   find at top and RIGHT CLICK  -  RUN AS ADMIN

Enter this at the prompt - sfc /scannow
How to Repair Windows 7 System Files with System File Checker
How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
generates in Windows Vista cbs.log

Also run CheckDisk so we can rule out corruption as much as possible.

How to Run Disk Check in Windows 7


After the above :
How to troubleshoot a problem by performing a clean boot in Windows Vista or
Windows 7
Use Advanced Tools to Troubleshoot Performance Problems in Windows 7
Problems with overall system speed and performance

How to troubleshoot performance issues in Windows Vista

Optimizing Microsoft Windows Vista Performance

To see all that is loading bootup - wait a few minutes without doing anything - then Right Click
TaskBar - Task Manager - take a look at Appplications - Processes - Services - this is a quick
reference (if you have a little box on Lower Left - Show for All Users then check that).
How to Change, Add, or Remove Startup Programs in Windows 7

A quick check to see which are loading is Method 2 there - using MSCONFIG then post a list of
those here.

Tools that should help :

Process Explorer - Free - Find out what files, registry keys and other objects processes have open,
which DLLs they have loaded, and more.
This uniquely powerful utility will even show you who owns
each process.

Autoruns - Free - See what programs are configured to startup automatically when your system boots
and you login.
Autoruns also shows you the full list of Registry and file locations where applications can
configure auto-start settings.

Process Monitor - Free - Monitor file system, Registry, process, thread and DLL activity in real-time.

There are many excellent free tools at Sysinternals

WhatsInStartUP - Free - This utility displays the list of all applications that are loaded automatically
when Windows starts up.
For each application, the following information is displayed: Startup Type (Registry/Startup Folder), Command -Line String, Product Name, File Version, Company Name,
Location in the Registry or file system, and more.
It allows you to easily disable or delete unwanted
programs that runs in your Windows startup.
There are many excellent free tools at NirSoft

Window Watcher - Free - Do you know what's running on your computer? Maybe not.
The Window
Watcher tells all, reporting every window created by every running program, whether the window
is visible or not.

Many excellent free tools and an excellent newsletter at Karenware

Consider this an absolute must - manually updating your drivers.
Vista and Windows 7 love updated drivers so here is how to update the major ones.

This is my generic how to for proper driver updates :

This utility makes it easy to see which versions are loaded :

DriverView - Free - utility displays the list of all device drivers currently loaded on your system.
For each driver in the list, additional useful information is displayed: load address of the driver,
description, version, product name, company that created the driver, and more.

For Drivers check System Maker as fallbacks and Device Maker's which are the most current.
Control Panel - Device Manager - Display Adapter - write down the make and complete model
of your video adapter - double click - Driver's tab - write down the version info.
Now click UPdate
Driver (this may not do anything as MS is far behind certifying drivers) - then Right Click -
Uninstall - REBOOT this will refresh the driver stack.

Repeat that for Network - Network Card (NIC), Wifi, Sound, Mouse and Keyboard if 3rd party
with their own software and drivers and any other major device drivers you have.

Now go to System Maker's site (Dell, HP, Toshiba as examples) (as rollback) and then Device
Maker's site (Realtek, Intel, Nvidia, ATI as examples) and get their latest versions.
(Look for
BIOS, Chipset and software updates at System Maker's site while there.)

Download - SAVE - go to where you put them - Right Click - RUN AD ADMIN - REBOOT after
each installation.

Always check in Device Manager - Drivers tab to be sure the version you are installing actually
shows up.
This is because some drivers rollback before the latest is installed (sound drivers
particularly do this) so install a driver - reboot - check to be sure it is installed and repeat as

Repeat at Device Makers - BTW at Device Makers DO NOT RUN THEIR SCANNER - check
manually by model.

Manually look at manufacturer's sites for drivers - and Device Maker's sites.
Installing and updating drivers in Windows 7 (updating drivers manually using the methods above
is preferred to ensure the latest drivers from System maker and Device makers are found)

If you update drivers manually then it is a good idea to disable Driver Installations in Windows
Updates, this leaves Windows Updates ON however it will not install drivers which will usually be
older and cause issues.
If Updates suggests a new driver then HIDE it (Right Click on it) and then
go look for new ones manually if you wish.

How To Disable Automatic Driver Installation In Windows Vista - Drivers


Refer to these threads for many more excellent tips however be sure to check your antivirus
programs, update major drivers and BIOS, and also troubleshoot with the cleanboot method
Problems with overall system speed and performance

Performance and Maintenance tips
Windows Explorer has stopped working

Hope this helps.

Manually editing the Windows registry

Manually editing the Windows registry to remove invalid MACHINE_CHECK_EXCEPTION keys is not recommended unless you are PC service professional. Incorrectly editing your registry can stop your PC from functioning and create irreversible damage to your operating system. In fact, one misplaced comma can prevent your PC from booting entirely!

Caution: Unless you an advanced PC user, we DO NOT recommend editing the Windows registry manually. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. We do not guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

To manually repair your Windows registry, first you need to create a backup by exporting a portion of the registry related to MACHINE_CHECK_EXCEPTION (eg. Windows Operating System):

  • Click the Start button.
  • Type "command" in the search box... DO NOT hit ENTER yet!
  • While holding CTRL-Shift on your keyboard, hit ENTER.
  • You will be prompted with a permission dialog box.
  • Click Yes.
  • A black box will open with a blinking cursor.
  • Type "regedit" and hit ENTER.
  • In the Registry Editor, select the Error 0x9C-related key (eg. Windows Operating System) you want to back up.
  • From the File menu, choose Export.
  • In the Save In list, select the folder where you want to save the Windows Operating System backup key.
  • In the File Name box, type a name for your backup file, such as "Windows Operating System Backup".
  • In the Export Range box, be sure that "Selected branch" is selected.
  • Click Save.
  • The file is then saved with a .reg file extension.
  • You now have a backup of your MACHINE_CHECK_EXCEPTION-related registry entry.

Recommended Method to Fix the Problem: computer keeps crashing - Computer is crashing or freezing for no apparent reason:

How to Fix computer keeps crashing - Computer is crashing or freezing for no apparent reason with SmartPCFixer?

1. Download Error Fixer. Install it on your system.

2. After the scan is done, you can see the errors and problems which need to be repaired.

3. The Fixing part is finished, the speed of your computer will be much higher than before and the errors have been removed.

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