VSCode doesn't start from UNC path

[theFireProject]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.101.0
• OS Version: Windows 10 22H2 Build 19045.4780

Details from VSCode > Help > About

  Version: 1.101.0
  Commit: dfaf441
  Date: 2025-06-11T15:00:50.123Z
  Electron: 35.5.1
  ElectronBuildId: 11727614
  Chromium: 134.0.6998.205
  Node.js: 22.15.1
  V8: 13.4.114.21-electron.0
  OS: Windows_NT x64 10.0.19045

Steps to Reproduce:

1. Download VSCode Windows x64 .zip
2. Extract files to a location under a UNC path
3. Start VSCode
4. Nothing happens.

I also tried to run VSCode from the command line to see whether there are any error messages but there was nothing. I did the same thing with VSCodium and got the following error messages.

Steps to Reproduce:

1. Open PowerShell
2. Navigate into the VSCode directory
    
   • Option 1
     1. Run .\Code.exe
     2. Nothing happens, no error messages
      
   • Option 2
     1. Run .\VSCodium.exe
     4. Error message shows up

Error message:

PS Microsoft.PowerShell.Core\FileSystem::\\MyFiles\Downloads\VSCode-win32-x64-1.101.0> .\Code.exe
PS Microsoft.PowerShell.Core\FileSystem::\\MyFiles\Downloads\VSCode-win32-x64-1.101.0>
[4492:0616/171447.158:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.173:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.215:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.219:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.222:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.358:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.362:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.485:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.495:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4492:0616/171447.495:FATAL:gpu_data_manager_impl_private.cc(450)] GPU process isn't usable. Goodbye.

If I create a data directory inside the VSCodium folder (to run it in protable mode and prevent it from using my AppData folder which might already contain user data from VSCodium), I get the following error message:

PS Microsoft.PowerShell.Core\FileSystem::\\MyFiles\Downloads\VSCode-win32-x64-1.101.0> .\Code.exe
PS Microsoft.PowerShell.Core\FileSystem::\\MyFiles\Downloads\VSCode-win32-x64-1.101.0>
[4700:0616/171051.595:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171051.610:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171051.666:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171051.670:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171051.816:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171051.910:ERROR:network_sandbox.cc(302)] Failed to grant sandbox access to cache directory \\MyFiles\Downloads\VSCodium-win32-ia32-1.74.2.22355\data\user-data\Cache\Cache_Data: Zugriff verweigert (0x5)
[4700:0616/171051.919:ERROR:network_sandbox.cc(396)] Failed to grant sandbox access to network context data directory \\MyFiles\Downloads\VSCodium-win32-ia32-1.74.2.22355\data\user-data\Network: Zugriff verweigert (0x5)
[4700:0616/171051.945:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171051.951:ERROR:network_service_instance_impl.cc(261)] Encountered error while migrating network context data or granting sandbox access for \\MyFiles\Downloads\VSCodium-win32-ia32-1.74.2.22355\data\user-data\Network. Result: 6: Der Vorgang wurde erfolgreich beendet. (0x0)
[4700:0616/171051.960:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171052.030:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[main 2025-06-16T15:10:52.355Z] update#setState idle
[4700:0616/171052.411:ERROR:gpu_process_host.cc(968)] GPU process launch failed: error_code=18
[4700:0616/171052.412:FATAL:gpu_data_manager_impl_private.cc(450)] GPU process isn't usable. Goodbye.