If Streamlabs Desktop reports a missing Visual C++ runtime or fails during setup, install both the Microsoft Visual C++ Redistributable packages for x86 (32-bit) and x64 (64-bit), then restart Windows. Streamlabs’ dedicated prerequisite instructions specify both architectures. Use Microsoft’s official download page, not a third-party installer site.
What the Visual C++ Redistributable does
Applications built with Microsoft Visual C++ may rely on runtime libraries to run. The Redistributable installs those libraries; it is a prerequisite, not a replacement for Streamlabs Desktop or a general fix for every crash.
Microsoft says the package architecture must match the application’s target architecture. Streamlabs’ instructions nevertheless ask users to install both x86 and x64 packages, including on 64-bit Windows. Follow that product-specific guidance for this troubleshooting procedure.
Install both packages and restart
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Open Streamlabs’ support article titled “Microsoft Visual C++ Redistributables 2022 Needed for Streamlabs Desktop” and Microsoft’s “Latest Supported Visual C++ Redistributable Downloads” page. The Streamlabs prerequisite page, last updated April 22, 2025, specifies the Visual C++ 2015–2022 Redistributables in x86 and x64 versions. Download the current installers from Microsoft.
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Run the x86 installer and follow its prompts. Then run the x64 installer and follow its prompts. If Windows asks for administrator approval, approve it only for the Microsoft-sourced installer.
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Restart the computer after both installations finish. Then open Streamlabs Desktop and check whether the original error is resolved.
Why you may see different version labels
Streamlabs’ dedicated prerequisite article refers to Visual C++ 2015–2022, while its getting-started guidance has referred to Visual C++ 2017. Microsoft describes the current v14 Redistributable as shared across supported Visual Studio generations from 2017 onward and recommends the latest supported package for eligible applications. The package is updated over time, so use Microsoft’s current official download page and follow any newer instructions shown by Streamlabs.
If installation fails: repair the newest entries
Streamlabs recommends repairing the newest installed C++ Redistributable entries if setup fails. In Windows, open Settings > Apps > Installed apps (called Apps & features in some Windows versions), find the newest Microsoft Visual C++ Redistributable entries, and repair both architectures if listed.
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Select the newest Microsoft Visual C++ Redistributable entry and choose Modify. If prompted, allow the Microsoft setup program to make changes.
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Choose Repair and let the operation finish.
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Repeat for the newest entry of the other architecture, where available.
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Restart Windows, then try the Streamlabs installation or launch again.
If the Redistributable installer still will not complete
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Run the installer as administrator: right-click the Microsoft installer and choose Run as administrator.
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Install pending Windows updates: restart if Windows Update requires it, then try the Microsoft installer again.
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Check security software: antivirus or other protection can block installation. Do not leave protection disabled; if you temporarily change a setting to troubleshoot, re-enable it afterward.
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Collect installer logs if the failure persists: Microsoft’s troubleshooting guidance describes collecting Visual Studio logs; the relevant VC Redistributable logs are included with the collected logs. These can help support identify an installation failure.
If Streamlabs Desktop still shows an error
Installing or repairing the runtime is not a guarantee against unrelated crashes or launch problems. Streamlabs’ crash troubleshooting guidance also points to Windows updates, graphics-driver updates, running Streamlabs as administrator, and checking firewall or antivirus allowance. For a going-live error, Streamlabs also lists the Redistributables among possible troubleshooting steps, but the runtime will not resolve every connection or configuration problem.
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If the error remains after the runtime repair and relevant system checks, submit a support ticket to Streamlabs and include the exact error text and what you have already tried.
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