Windows: Smart App Monitor blocks installation/update

Open

#155 opened on Sep 22, 2026 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 40/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Active
Tech stack: cpp
Domain: desktop, security

Research direction

The issue is about Windows Smart App Control blocking libvirtualhid due to missing code signing. Start by examining the Windows build and packaging scripts, likely in CI or installer configurations. Research Microsoft's code signing requirements and how to obtain a valid certificate. Testing requires a Windows 11 environment with Smart App Control enabled to reproduce the block.

Written by the indexing model from the issue text.

Description

Describe the Bug

On Windows 11 (and propably 10) Smart App Control prevents libvirtualhid execution because it has not a valid signed package. Program cannot be installed without disabling the Smart App Check in Windows Settings.
More info at this link by Microsoft: https://support.microsoft.com/it-it/windows/security/threat-malware-protection/smart-app-control-frequently-asked-questions#bkmk_unknown

Expected Behavior

No response

Additional Context

The version that caused the issue is v2026.914.1218.10, the version before didn't trigger any warning.
I can't provide more context since I haven't a valid license, so my testing capabilities are limited but the issue arises during installing/updating.

Dominant language: C++
Stars: 57
Forks: 15
Avg merge: 10h 54m
Merged PRs (30d): 32

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