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AZ-140 · Question #93

You create and test an FSLogix rule set. You notice that the rules have been implemented, but they are not taking effect. Which of the following steps would you take to resolve this issue? (Choose two

The correct answer is A. Verify the .sys in C:\Program Files\FSLogix\Apps\CompiledRules C. Verify the rule sets are copied to C:\Program Files\FSLogix\Apps\Rules.. When FSLogix App Masking rules are not taking effect, it's crucial to ensure that the compiled rule sets are correctly placed in the C:\Program Files\FSLogix\Apps\Rules directory and that the FSLogix filter driver is present and functioning.

Submitted by mike_84· Apr 18, 2026Plan and implement user environments and apps

Question

You create and test an FSLogix rule set. You notice that the rules have been implemented, but they are not taking effect. Which of the following steps would you take to resolve this issue? (Choose two)

Options

  • AVerify the .sys in C:\Program Files\FSLogix\Apps\CompiledRules
  • BVerify that the destination path USER_PROFILE_PATH has two underscores at the start and
  • CVerify the rule sets are copied to C:\Program Files\FSLogix\Apps\Rules.
  • DVerify rule assignment and test the ruleset

How the community answered

(51 responses)
  • A
    75% (38)
  • B
    18% (9)
  • D
    8% (4)

Why each option

When FSLogix App Masking rules are not taking effect, it's crucial to ensure that the compiled rule sets are correctly placed in the `C:\Program Files\FSLogix\Apps\Rules` directory and that the FSLogix filter driver is present and functioning.

AVerify the .sys in C:\Program Files\FSLogix\Apps\CompiledRulesCorrect

The FSLogix filter driver (`frxdrv.sys`) is essential for App Masking rules to take effect, and its presence and proper functioning (typically located in `C:\Program Files\FSLogix\Apps`) must be verified if rules are not applying.

BVerify that the destination path _USER_PROFILE_PATH_ has two underscores at the start and

The destination path `_USER_PROFILE_PATH_` is typically used in FSLogix redirections or rules, and while its syntax is important, it's not a primary reason for rule sets themselves not taking effect if the files are not correctly deployed or processed.

CVerify the rule sets are copied to C:\Program Files\FSLogix\Apps\Rules.Correct

For FSLogix App Masking rules to be applied, the compiled rule set files (`.fxc` extension) must be present in the `C:\Program Files\FSLogix\Apps\Rules` directory on the session host.

DVerify rule assignment and test the ruleset

While verifying rule assignment is a critical troubleshooting step, the question states "rules have been implemented," which might imply assignment is already correctly configured, shifting the focus to issues with rule file deployment or the FSLogix service/driver.

Concept tested: FSLogix App Masking troubleshooting

Source: https://learn.microsoft.com/en-us/fslogix/app-masking-overview

Topics

#FSLogix#Application Masking#Troubleshooting#User Environment

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