Please try Autoruns.
Search for flexi or anything referencing that UUID or URL
Look in the Logon, Scheduled Tasks, and Services tabs
Instructions on how to install and use Autoruns:
To install and run Sysinternals Autoruns on Windows 11, download it from the official Microsoft Sysinternals page at https://learn.microsoft.com/en-us/sysinternals/.... Scroll down and click the Download Autoruns link to get the ZIP file. Once the file is downloaded, locate it in your Downloads folder, right-click on it, and choose Extract All. Select a destination folder, such as your Desktop or a tools folder, and click Extract to extract the contents.
Next, navigate to the extracted folder and double-click on Autoruns64.exe (for 64-bit systems, which most Windows 11 installations use) or Autoruns.exe (for 32-bit systems). When prompted by User Account Control (UAC), click Yes to allow the program to make changes to your device. Upon opening Autoruns for the first time, you’ll see a license agreement. Click Agree to proceed.
Autoruns will display a comprehensive list of all startup items by default. To make the list more manageable, go to the Options menu and select Hide Microsoft Entries to exclude core Windows components. Additionally, you can enhance accuracy by selecting Options > Scan Options, enabling Verify Code Signatures, and refreshing the list by pressing F5.
Review the various tabs in Autoruns, such as Logon, Services, and Drivers, to analyze startup items. To disable an item from starting up, uncheck the box next to it. However, exercise caution and avoid disabling entries unless you’re sure of their function, as critical system components are also listed. For clarity, you can right-click any entry and select Search Online to research it.
Optionally, save the current state of your startup items by clicking File > Save. This saved file serves as a baseline and allows you to revert changes later if needed. Once you’ve finished managing your startup items, close Autoruns. For best results, always run the program as an administrator by right-clicking Autoruns64.exe and selecting Run as administrator. Remember to be careful when making changes to avoid disrupting essential system processes.