Ubiquity Won't Launch
The Most Common Cause
If Ubiquity doesn't open after installation — or if you see an error like "The application was unable to start correctly" or a missing DLL message — the most likely cause is a missing system component called the Microsoft Visual C++ Redistributable.
Ubiquity requires the Microsoft Visual C++ 2015-2022 Redistributable to run. This package provides essential runtime libraries that many Windows applications depend on. Without it, Ubiquity simply cannot start.
How to Fix It
You need to download and install the redistributable package from Microsoft. It's free, safe, and takes less than a minute.
-
Download the Redistributable.
Visit the official Microsoft page:
Microsoft Visual C++ 2015-2022 Redistributable (x64)
This link downloads the 64-bit version, which is what most modern PCs need. If you're on a 32-bit system, use the x86 version instead. -
Run the installer.
Double-click the downloaded file (vc_redist.x64.exe). Accept the license terms and click Install. -
Restart your PC.
After the installation completes, restart your computer to make sure the new libraries are properly registered. -
Launch Ubiquity.
Open Ubiquity from your Start Menu or desktop shortcut. It should now launch without any errors.
Already installed but still not working? Try uninstalling the Redistributable from Settings → Apps → Installed apps, then reinstall it fresh. A corrupted installation can sometimes cause the same symptoms.
Other Things to Check
If the Redistributable fix doesn't solve the problem, here are a few more things to try:
- Run as Administrator: Right-click the Ubiquity shortcut and select Run as administrator to see if it's a permissions issue.
- Check Windows Updates: Make sure your system is fully updated. Outdated system files can sometimes cause compatibility issues.
- Temporarily disable antivirus: Some security software may block new applications. Try disabling your antivirus briefly to see if Ubiquity launches.
- Reinstall Ubiquity: Uninstall Ubiquity from Settings → Apps → Installed apps, then download and run the installer again.
Still need help? Reach out to our support team through the Contact Support button on the support page, and we'll get you sorted out.