Guide · Windows & macOS

Program won't launch or freezes — basic diagnostics

Before you assume an app needs reinstalling, check a few things — the problem is more often with that specific launch than with the installation itself.

What to check, step by step

1

Check Task Manager for whether it's already running

Sometimes clicking an app icon that won't open actually launches it in the background — repeated clicks just pile up more stuck processes. In Task Manager (Ctrl + Shift + Esc), check whether the app is already running, and end all of its processes before trying again.

2

Run the program as administrator

Right-click the app's icon and choose "Run as administrator." Some apps need permissions they don't have on a regular launch, and fail to open silently.

3

Check for available app updates

Especially after a Windows update, an older app version can stop working correctly. Check within the app or on the vendor's site for a newer version.

4

Check whether it's one document or the whole program

If the app freezes when opening a specific file but starts fine with an empty window, that one file is likely corrupted, not the program itself.

When it's a job for IT

  • The steps above don't help, and the program is essential for daily work.
  • The app shows a specific error message — worth noting or photographing before reporting.
  • The problem is with a company-licensed app managed centrally — reinstalling may need access you don't have locally.

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