Software, Installation Problems
How to Fix a Windows App That Won't Install
Troubleshoot Windows app and program install failures by separating Store issues, blocked installers, permissions, disk space, and missing runtimes.
Installation Problems
Installers that stall, request missing runtimes, or fail with permission errors.
Start with the closest symptom
These guides are grouped here because the first checks overlap. Open the guide that best matches what you see now, then use its verification section before moving to a broader fix.
Related tools
- PC Troubleshooting Wizard, Answer a few questions about what is going wrong. The wizard points you to the safest matching guide on this site.
- Windows Error Code Lookup, Look up a Windows update code or blue-screen name and see what it usually means, plus safe next steps.
- File Extension Lookup, Look up common Windows file extensions and see what they usually are, what opens them, and when to be careful.