Windows 10 IOT Enterprise : COMMIT a File to a Disk Protected with UWF

Question

We have an application that runs from the system32 directory. We usually do in application upgrades. In other words via the application we write new files to the disk then restart the application. We have done this with our Windows 7 applications I believe using FBWF. We migrated to Windows 10 IOT and enabled UWF. I'm using the WMI API's to access UWF functions. I believe the files already protected by UWF update ok. The issue is if the file is not already on the disk I cannot Commit it. I need to commit a NEW file to a protected folder. We add new language and other features this way. I want to have the application do upgrades as it did in Windows 7.

Answer 1

Hello,

According to the discription, your issue is related to UWF on win 10 IOT. Try below methods to help fix:

1. You can run below command to commit a new file to protected folder: Uwfmgr File Commit <file path>
2. You can manage UWF directly on win 10 using uwfmgr.exe
3. UWF can protect most supported writable storage types, including physical hard disks, solid-state drives, internal USB devices, and external SATA devices. You can't use UWF to protect external removable drives, USB devices or flash drives. Supports both master boot record (MBR) and GUID partition table (GPT) volumes. For more information, you can refer to this article:

https://learn.microsoft.com/en-us/windows/iot/iot-enterprise/customize/unified-write-filter

Best regards,

Molly

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