Windows 10: Help needed! msmpeg2vdec, UnityPlayer.dll keeps crashing

We're a business trying to run a Golf Simulator and have been devastated by these issues for over a year now. I've tried:- Re-registering these dll files multiple times- Multiple clean boots- Full system scan with antivirus program- System restore- System file checker- Full uninstall and reinstallWe've even changed multiple parts in the Computer including the motherboard and it doesn't matter. We need help asap. Can provide log files.

:)

 

Kernel32, ntdll.dll, and msmpeg2vdec are causing game crashes

Hi

Welcome to Microsoft community.

It sounds like you've already taken several of the standard troubleshooting steps to resolve game crashes related to kernel32.dll, ntdll.dll and msmpeg2vdec.dll without success. These DLL files are crucial components of the Windows operating system, with kernel32.dll and ntdll.dll involved in many system-level operations and msmpeg2vdec.dll being a Windows Media MPEG video decoder. Issues with these files can be particularly challenging to resolve, but here are a few more steps you can consider:

Performing a clean boot for Windows can help you identify if background programs are causing conflicts.

• Press Windows Key + R type msconfig and press Enter.
  
• In the System Configuration window, on the Services tab, select the Hide all Microsoft services checkbox, and then click Disable all.
  
• On the Startup tab, click Open Task Manager. In Task Manager, for each startup item, select the item and then click Disable.
  
• Close Task Manager.
  
• On the Startup tab of the System Configuration dialog box, click OK, and then restart your computer.
  
  Disclaimer: A “clean boot” starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background service is interfering with your game or program and to isolate the cause of a problem.
  
  These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by step so that it will help you get back on track.
  

Since you've run a memory test, consider checking other components like your GPU and hard drive.

• Use a tool like HWMonitor to check for overheating issues.
  
• Use CrystalDiskInfo to check your hard drive's health.
  

You might try re-registering the problematic DLL files using the Command Prompt.

• Open Command Prompt as Administrator.
  
• To re-register a DLL file, type regsvr32 kernel32.dll press Enter, and then repeat this for the other DLL files ( ntdll.dll msmpeg2vdec.dll ). Note: This step might not work for certain system-critical DLLs like ntdll.dll and kernel32.dll due to their protected status but can be effective for others.
  

Sometimes malware can masquerade as legitimate DLL files, causing crashes and other issues.

• Run a full system scan with your antivirus program.
  
• Consider using an additional malware removal tool to check for any threats that might have been missed.
  

Corruption in your user profile can lead to various issues.

• Go to Settings > Accounts > Family & other users.
  
• Click Add someone else to this PC and follow the prompts to create a new account.
  
• Log in with the new account and check if the issue persists.
  

If all else fails, you might consider using System Restore to roll back to a point before the issues began, or Resetting your PC while keeping your files.

• For System Restore, search for "Create a restore point" in the Start menu, open it, go to the System Protection tab, and click System Restore.
  
• For Reset, go to Settings > System > Recovery > Reset this PC.
  

Please feel free to let me know how it goes.

Best regards

Derrick Qian | Microsoft Community Support Specialist

 

d3d11.dll caused an Access Violation (0xc0000005) in module d3d11.dll at 0033:ef0bc6e0.

What is the problem and how to solve it? This error occurs intermittently when I play Honkai Star Rail.

Star Rail by Cognosphere [version: Unity 2019.4.34f1_526d1cb77d]



d3d11.dll caused an Access Violation (0xc0000005)

in module d3d11.dll at 0033:ef0bc6e0.



Error occurred at 2023-09-06_235724.

G:\Star Rail\Games\StarRail.exe, run by XxNar.



97% physical memory in use.

8163 MB physical memory [222 MB free].

3847 MB process peak paging file [3676 MB used].

3022 MB process peak working set [2842 MB used].

System Commit Total/Limit/Peak: 11277MB/15331MB/13878MB

System Physical Total/Available: 8163MB/222MB

System Process Count: 185

System Thread Count: 2033

System Handle Count: 85280

Disk space data for 'C:\Users\XxNar\AppData\Local\Temp\Cognosphere\Star Rail\Crashes\Crash_2023-09-06_205722620\': 133881507840 bytes free of 479437365248 total.



Read from location 00000000000000B1 caused an access violation.



Context:

RDI: 0x00000000800ef080 RSI: 0x0000000000000017 RAX: 0x0000000079c1e350

RBX: 0x0000000000000000 RCX: 0x00000000742e0830 RDX: 0x0000000000000000

RIP: 0x00007ff9ef0bc6e0 RBP: 0x0000000106d8f030 SegCs: 0x0000000000000033

EFlags: 0x0000000000010206 RSP: 0x0000000079c1e2a0 SegSs: 0x000000000000002b

R8: 0x0000000000000000 R9: 0x0000000000000004 R10: 0x0000000079c1e350

R11: 0x00007ff9ef161b40 R12: 0x0000000000000000 R13: 0x0000000000000000

R14: 0x0000000106d8f040 R15: 0x00000000742e0830





Bytes at CS:EIP:

48 0f be 82 b1 00 00 00 48 81 c1 40 ff ff ff 4c



No mono DLL path set. This app is either running IL2CPP, or the crash occurred before mono was initialized.





Stack Trace of Crashed Thread 7628:

0x00007FF9EF0BC6E0 (d3d11) CreateDirect3D11SurfaceFromDXGISurface

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992C59A52)

0x00007FF992C59A52 (unityplayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992C494B0)

0x00007FF992C494B0 (unityplayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992D01CF8)

0x00007FF992D01CF8 (unityplayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992D0327D)

0x00007FF992D0327D (unityplayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992D03358)

0x00007FF992D03358 (unityplayer) (function-name not available)

0x00007FF9930D9D88 (unityplayer) UnityMain

0x00007FF9F3B07614 (KERNEL32) BaseThreadInitThunk

0x00007FF9F59826B1 (ntdll) RtlUserThreadStart



Stacks for Running Threads:



Call Stack for Thread 10740:

0x00007FF9F59CD094 (ntdll) ZwWaitForSingleObject

0x00007FF9F36630CE (KERNELBASE) WaitForSingleObjectEx

0x00007FF993799B22 (unityplayer) UnityMain

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992CE0687)

0x00007FF992CE0687 (unityplayer) (function-name not available)

0x00007FF993091F27 (unityplayer) UnityMain

0x00007FF99309315E (unityplayer) UnityMain

0x00007FF99308E6A7 (unityplayer) UnityMain

0x00007FF993073B3A (unityplayer) UnityMain

0x00007FF99306795E (unityplayer) UnityMain

0x00007FF992D9EE35 (unityplayer) UnityMain

0x00007FF992EB4770 (unityplayer) UnityMain

0x00007FF992F8179B (unityplayer) UnityMain

0x00007FF992DDCAFF (unityplayer) UnityMain

0x00007FF992DDD2C9 (unityplayer) UnityMain

0x00007FF992DDA0D6 (unityplayer) UnityMain

0x00007FF992DDA692 (unityplayer) UnityMain

0x00007FF992F3C1F9 (unityplayer) UnityMain

0x00007FF992F4203E (unityplayer) UnityMain

0x00007FF992F423E3 (unityplayer) UnityMain

0x00007FF992F3E12D (unityplayer) UnityMain

0x00007FF992DF9EFA (unityplayer) UnityMain

0x00007FF992DF97EB (unityplayer) UnityMain

0x00007FF993000096 (unityplayer) UnityMain

0x00007FF992FF2107 (unityplayer) UnityMain

0x00007FF992FF21A3 (unityplayer) UnityMain

0x00007FF992FF45FC (unityplayer) UnityMain

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992D3B4AE)

0x00007FF992D3B4AE (unityplayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992D3A20A)

0x00007FF992D3A20A (unityplayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00007FF992D3E3E8)

0x00007FF992D3E3E8 (unityplayer) (function-name not available)

0x00007FF992D4275B (unityplayer) UnityMain

ERROR: SymGetSymFromAddr64, GetLastError: 'Попытка обращения к неверному адресу.' (Address: 00000001400011F2)

0x00000001400011F2 (StarRail) (function-name not available)

0x00007FF9F3B07614 (KERNEL32) BaseThreadInitThunk

0x00007FF9F59826B1 (ntdll) RtlUserThreadStart



This is not a complete file, write below if you need a full log

 

d3d11.dll caused an Access Violation Error when loading unity games

Whenever I load a game that uses unity I get this error.

I've updated my drivers, restarted, rebooted, reinstalled all the games, run as admin but no difference.

This has only recently started happening.

Any suggestions would be appreciated.

PS. See below for one of the log files if this is more helpful.

EDIT: Updated to win11, same problem

Phasmophobia by Kinetic Games [version: Unity 2019.4.31f1_bd5abf232a62]



d3d11.dll caused an Access Violation (0xc0000005)

in module d3d11.dll at 0033:ba73c370.



Error occurred at 2022-02-04_083652.

D:\SteamLibrary\steamapps\common\Phasmophobia\Phasmophobia.exe, run by thoma.



32% physical memory in use.

16319 MB physical memory [11004 MB free].

4605 MB process peak paging file [3962 MB used].

2303 MB process peak working set [1473 MB used].

System Commit Total/Limit/Peak: 9423MB/19263MB/10020MB

System Physical Total/Available: 16319MB/11004MB

System Process Count: 168

System Thread Count: 2942

System Handle Count: 86658

Disk space data for 'C:\Users\thoma\AppData\Local\Temp\Kinetic Games\Phasmophobia\Crashes\Crash_2022-02-04_083649752\': 833005780992 bytes free of 1023547269120 total.



Read from location 00000000000000B1 caused an access violation.



Context:

RDI: 0x0000027f70084800 RSI: 0x0000000000000009 RAX: 0x000000e44af7e290

RBX: 0x0000000000000000 RCX: 0x0000028091da7ca0 RDX: 0x0000000000000000

RIP: 0x00007ff8ba73c370 RBP: 0x0000027ff021a8d0 SegCs: 0x0000000000000033

EFlags: 0x0000000000010202 RSP: 0x000000e44af7e1e0 SegSs: 0x000000000000002b

R8: 0x0000000000000000 R9: 0x0000000000000004 R10: 0x000000e44af7e290

R11: 0x00007ff8ba7e1a70 R12: 0x0000000000000000 R13: 0x0000000000000000

R14: 0x0000027ff021a8e0 R15: 0x0000028091da7ca0





Bytes at CS:EIP:

48 0f be 82 b1 00 00 00 48 81 c1 40 ff ff ff 4c



No mono DLL path set. This app is either running IL2CPP, or the crash occurred before mono was initialized.





Stack Trace of Crashed Thread 3588:

0x00007FF8BA73C370 (d3d11) CreateDirect3D11SurfaceFromDXGISurface

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AE6E9C2)

0x00007FF85AE6E9C2 (UnityPlayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AE5E880)

0x00007FF85AE5E880 (UnityPlayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AF13108)

0x00007FF85AF13108 (UnityPlayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AF1436D)

0x00007FF85AF1436D (UnityPlayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AF14448)

0x00007FF85AF14448 (UnityPlayer) (function-name not available)

0x00007FF85B2437B8 (UnityPlayer) UnityMain

0x00007FF8BF6D7034 (KERNEL32) BaseThreadInitThunk

0x00007FF8C10E2651 (ntdll) RtlUserThreadStart



Stacks for Running Threads:



Call Stack for Thread 2700:

0x00007FF8C112CDF4 (ntdll) NtWaitForSingleObject

0x00007FF8BE7C1A5E (KERNELBASE) WaitForSingleObjectEx

0x00007FF85B8CC8F2 (UnityPlayer) UnityMain

0x00007FF85B1568DB (UnityPlayer) UnityMain

0x00007FF85B15384C (UnityPlayer) UnityMain

0x00007FF85B2A10C0 (UnityPlayer) UnityMain

0x00007FF85B2A132D (UnityPlayer) UnityMain

0x00007FF85B19A717 (UnityPlayer) UnityMain

0x00007FF85B19A7B3 (UnityPlayer) UnityMain

0x00007FF85B19CC0C (UnityPlayer) UnityMain

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AF4B89E)

0x00007FF85AF4B89E (UnityPlayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AF4A5FA)

0x00007FF85AF4A5FA (UnityPlayer) (function-name not available)

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF85AF4E7D8)

0x00007FF85AF4E7D8 (UnityPlayer) (function-name not available)

0x00007FF85AF522DB (UnityPlayer) UnityMain

ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FF7AB8511F2)

0x00007FF7AB8511F2 (Phasmophobia) (function-name not available)

0x00007FF8BF6D7034 (KERNEL32) BaseThreadInitThunk

0x00007FF8C10E2651 (ntdll) RtlUserThreadStart