I have a four-year-old Windows PC that was working well until I downloaded a large amount of custom content for The Sims 4 from questionable sources. Since then, apps including Microsoft Store, Xbox, and Photos won't open. I deleted the downloaded files, but the problem remains. Some programs and games can still be launched by searching for them, but clicking icons on the taskbar often makes them appear to be open without showing a usable window. I've already tried updates and several troubleshooting videos, but nothing has fixed it. What should I try before considering a Windows reinstall?
4 Answers
A fresh Windows installation is probably the practical fix if repairs and malware scans fail. You don’t need to replace the computer—the reinstall only replaces the operating system. Save your important files, create Windows installation media on a USB drive, boot from it, and reinstall Windows. If that feels too risky, a reputable repair shop can do it for you.
Before wiping everything, check whether the apps work in a new Windows user account and try starting Windows in Safe Mode. If they work there, a damaged user profile or startup program could be responsible. Also avoid restoring the downloaded custom-content files until they’ve been scanned and verified.
It sounds like Windows components or system files may be damaged. Back up important documents first, then try System Restore if you have an earlier restore point. From an administrator Command Prompt, run `sfc /scannow`, followed by `DISM /Online /Cleanup-Image /RestoreHealth`. If the commands don’t fix it, a clean Windows installation may be the most reliable option.
Because the trouble began after downloading files from questionable sources, run a thorough malware scan. Ideally, use a bootable antivirus or Windows security USB created on a different, known-clean computer so the scan runs outside your installed Windows environment. Back up only personal files, not unknown programs or installers.
When I try to run DISM, the window appears briefly and disappears. Does that mean I’m doing something wrong?