Can anyone help me to solve the APPCRASH problem in windows 7 ?

I just brought a new laptop recently but after that i faced a big problem. When my laptop is lag, it will pop up a box saying that "Windows Explorer had stopped working", so i need to restart the Windows Explorer. But the problems seem continue to happen after i restart for many times. It took me a lot of time. So can anyone lend me a hand? Thanks!

When it happens, most of the application (software, microsoft word, folder) will have problem.

Problem signature:
  Problem Event Name: APPCRASH
  Application Name: explorer.exe
  Application Version: 6.1.7600.16450
  Application Timestamp: 4aebab8d
  Fault Module Name: StackHash_4a95
  Fault Module Version:
  Fault Module Timestamp: 00000000
  Exception Code: c0000005
  Exception Offset: 000007fefedf006a
  OS Version: 6.1.7600.
  Locale ID: 17417
  Additional Information 1: 4a95
  Additional Information 2: 4a951d2324a07c615f54e0a399caacb5
  Additional Information 3: 5d76
  Additional Information 4: 5d76505060cfdd0437b4a1e6d7f789e1

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Question Info

Last updated May 20, 2020 Views 93,142 Applies to:

Hi Chan Foong,


·         Do you receive this error when you launch a particular program?

·         Do you remember any recent changes made on your computer after which you are receiving this error?


The StackHash error occurs when DEP is invoked and has an issue with whatever application you’re trying to run (and there are several hundred out there that seem to give it fits). The error is related to Data Execution Prevention.


We will narrow down on the issue, by booting the computer in clean boot. To boot the computer in clean boot refer the link:

If the issue does not persist after booting in clean boot state, then continue with the troubleshooting to check which application or software is causing the explorer to crash, you may continue with step 2 from the above link.

Make sure you reset the computer to normal mode from step 7 after completing with troubleshooting.


After finding which application is causing the problem, you may follow the below steps:


  1. Open the Start menu and click Control Panel
  2. Browse to System Maintenance then System
  3. In the left panel, select Advanced System Settings from the available links
  4. You should now see the System Properties Window, which will have three sections. The top section is labeled Performance and has a Settings button. Click this button.
  5. Select the Data Execution Prevention tab.
  6. Select the option which reads Turn on DEP for all programs and services except those I select.
  7. Use the Browse button to locate the executable file for the application you were trying to start (oiwsetup.exe) when you received the StackHash error, and click  Open to add it to your exceptions list.
  8. Click Apply or OK to commit your changes.


Thanks and Regards:

Samhrutha G S - Microsoft Support.

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