Ext-ms-win-oobe-query-l1-1-0.dll Missing

The Feature: "Windows Out-of-Box Timeline (OOBT)"

Since ext-ms-win-oobe-query-l1-1-0.dll is an API Set related to the OOBE (Out-of-Box Experience)—the initial setup screen where you create your account, select your region, and connect to Wi-Fi—the missing DLL implies a "broken origin story."

What it is: This DLL is related to the Windows Out-of-Box Experience (OOBE)—the initial setup screen. ext-ms-win-oobe-query-l1-1-0.dll missing

The symptoms of the "ext-ms-win-oobe-query-l1-1-0.dll missing" error may vary, but common indicators include: If a developer built the app using a

Method 2: Run the System File Checker (SFC)

Corruption within Windows's protected system files can break the API Set linkage. The built-in System File Checker can repair this. Re-register System DLLs

. These packages contain the runtime libraries necessary for many Windows apps to function. Run System File Checker (SFC)

api-ms-win-crt-time-l1-1-0.dll Missing Error on Windows | 2020 | Fix #2

Many "ext-ms" errors are solved by simply catching up on system updates. If a developer built the app using a newer SDK than your OS supports, the mapping for this DLL might be missing. Settings > Update & Security > Windows Update and check for updates. Download the latest Visual C++ Redistributable packages from the Official Microsoft Support page 3. Re-register System DLLs