Many Insiders got this error while opening .exe files and while opening apps in Run as Administrator mode. The error says “File System error“, error code: 1073741819

How to fix File System error 1073741819?
How to fix File System error 1073741819?

Below is the detail from our Insider:
I am receiving File System error (-1073741819) while opening .exe files and while opening apps in Run as Administrator mode. I am not also able to run Command Prompt in admin mode. I noticed the error only recently, though I am not sure if I can blame it on Windows Update or UAC changes I had made. I am not able to set the UAC back to default. Is there a fix?

We forwarded this error to Microsoft Support Engineer and got a solution for this kind of error.

Solution to fix File System error (-1073741819) on Windows 10

From Microsoft Support Engineer

This might be caused due to the following reasons:

  1. UAC settings reg values changed.
  2. Windows system file corrupt.
Please follow the below method and check if it helps:
Method 1: Rebuild UAC using registry.
Follow the below steps:
To resolve this issue, change the registry setting. To do this, follow these steps:
  1.             Click Start, type notepad in the Search box, and then press ENTER.
  2.             Copy and then paste the following text into Notepad:
  3.             Windows Registry Editor Version 5.00
  5.             [HKEY_CLASSES_ROOT]
  7.             [HKEY_CLASSES_ROOTInterface{B722BCC5-4E68-101B-A2BC-00AA00404770}]
  8.             @=”IOleDocument”
  10.           [HKEY_CLASSES_ROOTInterface{B722BCC5-4E68-101B-A2BC-00AA00404770}NumMethods]
  11.           @=”6″
  13.           [HKEY_CLASSES_ROOTInterface{B722BCC5-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  14.           @=”{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}”
  16.           [HKEY_CLASSES_ROOTInterface{B722BCC6-4E68-101B-A2BC-00AA00404770}]
  17.           @=”IOleDocumentView”
  19.           [HKEY_CLASSES_ROOTInterface{B722BCC6-4E68-101B-A2BC-00AA00404770}NumMethods]
  20.           @=”16″
  22.           [HKEY_CLASSES_ROOTInterface{B722BCC6-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  23.           @=”{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}”
  25.           [HKEY_CLASSES_ROOTInterface{B722BCC7-4E68-101B-A2BC-00AA00404770}]
  26.           @=”IOleDocumentSite”
  28.           [HKEY_CLASSES_ROOTInterface{B722BCC7-4E68-101B-A2BC-00AA00404770}NumMethods]
  29.           @=”4″
  31.           [HKEY_CLASSES_ROOTInterface{B722BCC7-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  32.           @=”{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}”
  34.           [HKEY_CLASSES_ROOTInterface{B722BCC8-4E68-101B-A2BC-00AA00404770}]
  35.           @=”IEnumOleDocumentViews”
  37.           [HKEY_CLASSES_ROOTInterface{B722BCC8-4E68-101B-A2BC-00AA00404770}NumMethods]
  38.           @=”7″
  40.           [HKEY_CLASSES_ROOTInterface{B722BCC8-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  41.           @=”{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}”
  43.           HKEY_CLASSES_ROOTInterface{B722BCC9-4E68-101B-A2BC-00AA00404770}NumMethods]
  44.           @=”6″
  46.           [HKEY_CLASSES_ROOTInterface{B722BCC9-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  47.           @=”{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}”
  49.           [HKEY_CLASSES_ROOTInterface{B722BCCA-4E68-101B-A2BC-00AA00404770}NumMethods]
  50.           @=”5″
  52.           [HKEY_CLASSES_ROOTInterface{B722BCCA-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  53.           @=”{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}”
  55.           [HKEY_CLASSES_ROOTInterface{B722BCCB-4E68-101B-A2BC-00AA00404770}]
  56.           @=”IOleCommandTarget”
  58.           [HKEY_CLASSES_ROOTInterface{B722BCCB-4E68-101B-A2BC-00AA00404770}NumMethods]
  59.           @=”5″
  61.           [HKEY_CLASSES_ROOTInterface{B722BCCB-4E68-101B-A2BC-00AA00404770}ProxyStubClsid32]
  •  Save the file as a registry file on your desktop with the name UAC.reg.
  • On your desktop, double-click UAC.reg, and then click Yes when you receive the following message:
You will get some prompts please click yes and proceed and then you will get a message stating: 
“The keys and values contained in pathUAC.reg have been successfully added to the registry”
Click ok  and restart the computer.
Registry disclaimer
To do so: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
How to back up and restore the registry in Windows
Method 2: SFC Scan
Please open the command prompt with Admin privilege and initiate SFC scan.
Please refer to the below article which will help you to initiate SFC scan.
Note: This article is also applicable for Windows 10 Technical Preview.

Hope this helps. If you still need assistance please reply.


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