Windows Security Prevents Software from Opening

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Symptom

When using Windows 11, the following issues may occur:

  • Double-clicking the Mech-MSR icon does not open the software. Windows Security displays the message: This app has been partially blocked.

  • Mech-MSR cannot be installed using the installer.

Possible Cause

After updating Windows Defender security patches, Windows may mistakenly identify Mech-MSR as an unsafe application and prevent it from opening. This issue is unrelated to the software version.

Solution

Temporarily disable the Smart App Control feature as follows:

smart app control

  1. Open Windows Security and select App & browser control.

  2. In the Smart App Control page, select Off.

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