Medium
Operating Systems
✓ Solution Verified by Community (0+ upvotes)
Error Code 0x80070643 — Windows 11
MSI installer fatal error during installation. .NET Framework or Visual C++ runtime issue.
Oprava založena na komunitních zprávách a expertní analýze. Naposledy ověřeno: 2026-08-12
· Jak ověřujeme opravy
| Error Code | 0x80070643 |
|---|---|
| Affected System | Windows 11 (Microsoft) |
| Difficulty | Medium |
| Estimated Time | 50 min |
| Requires Admin Rights | ⚠️ Yes |
| Requires Reboot | 🔄 Yes |
Postup řešení
- 1 Press Windows key + I to open Settings. Go to Apps → Installed apps. Look for 'Microsoft .NET Framework' or 'Microsoft Visual C++ Redistributable'. If present, uninstall them. Then download and install the latest versions from Microsoft's official website. This ensures you have the correct, up-to-date runtime.
- 2 Press Windows key + X and select 'Terminal (Admin)'. Type 'dism /online /cleanup-image /restorehealth' and press Enter. This repairs the system image, which can fix corrupted runtime files.
- 3 Type 'sfc /scannow' and press Enter. This scans and repairs system files that might be affecting the installation.
- 4 If the error occurs during a Windows Update, use the Windows Update Troubleshooter: Settings → System → Troubleshoot → Other troubleshooters → Windows Update → Run.
- 5 If the error persists, use the .NET Framework Repair Tool from Microsoft. Download and run it, following the on-screen instructions.
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