Windows code integrity is a security mechanism that checks whether code meets defined trust rules before allowing it to run. Depending on the Windows feature and policy in use, checks can consider such factors as a file’s signature and whether it is trusted or permitted.
Enforcing these rules can help block unauthorized or untrusted programs and reduce the risk of malicious code executing. Windows features such as Smart App Control use code integrity capabilities as part of application control. In practice, administrators may configure related policies centrally, then verify that protections remain enabled and manageable after system updates.