# How to Fix an App That Keeps Crashing or Won't Open

URL: https://www.mytechnician.tech/tips/fix-app-crashing-wont-open/
Published: 2026-05-21 | Author: Ankit Kumar
Tags: Windows 11, Troubleshooting, Fix
Summary: A program flashes and closes or won't start on Windows 11? Repair the install, clear cache, fix compatibility, and rule out a bad Windows update.
Recommended app: PC-Troubleshooter — https://www.mytechnician.tech/apps/windows-troubleshooter/ (Microsoft Store: https://apps.microsoft.com/detail/9N7RWKW8SP24?hl=en-us&cid=mytechnician-web). Optional; every step below uses built-in Windows tools.

## The Problem
Chrome, Adobe, a game, or Office worked yesterday; today double-clicking does nothing or the window vanishes in a second. When **every** app stutters, the PC has a wider issue—[freezing and crashing](https://www.mytechnician.tech/tips/fix-windows-11-freezing-crashing-randomly/). One stubborn app is almost always that app's update, cache, or permission—not a dead motherboard.

## Symptoms
* Splash screen then instant close with no error.
* **Application Error** or **0xc0000005** / **0xc0000142** codes ([dedicated 0xc0000142 guide](https://www.mytechnician.tech/tips/fix-application-error-0xc0000142-windows-11/)).
* "MSVCP140.dll was not found" or similar—see [fix missing MSVCP140.dll / VCRUNTIME140.dll](https://www.mytechnician.tech/tips/fix-msvcp140-dll-missing-windows-11/).
* App worked until a Windows or app update installed overnight.

## The Fix: Step-by-Step

### Step 1: Reboot and Run as Administrator (Once)
Right-click the app → **Run as administrator**. If it only works elevated, fix permissions or reinstall to the default path (`C:\Program Files`), not a random folder on D:.

### Step 2: End Stuck Background Processes
`Ctrl + Shift + Esc` → **Processes** → end all instances of the app (e.g. **Chrome**, **Acrobat**, **GameName**) → try opening again.

### Step 3: Repair or Reset (Microsoft Store and Some Desktop Apps)
**Settings** → **Apps** → **Installed apps** → find the app → **⋯** → **Advanced options**:
* **Repair** first.
* **Reset** if repair fails (resets app data—sign in again afterward).

For classic installers (Office, Adobe): open **Settings** → **Apps** → **Modify** or run the vendor's **Repair** from Control Panel if listed.

### Step 4: Clear App Cache (Browsers and UWP)
* **Chrome/Edge:** Settings → **Privacy** → **Delete browsing data** → cached images/files (or rename the profile folder after backing up bookmarks).
* **Microsoft Store apps:** **Advanced options** → **Reset** as above.

### Step 5: Compatibility Mode (Older Software)
Right-click the `.exe` → **Properties** → **Compatibility** → **Run this program in compatibility mode** → try **Windows 8** or **Windows 10** → check **Run as administrator** only if needed.

### Step 6: Install Visual C++ and .NET Runtimes
Games and creative apps error with missing DLLs. Install **Microsoft Visual C++ Redistributable** (2015–2022, x64 and x86) and latest **.NET Desktop Runtime** from Microsoft's download site—official links only.

### Step 7: Update or Roll Back the App
Update to the latest version inside the app or vendor site. If crashing started **after** an update, uninstall → download the previous installer from the vendor archive if offered, or wait for a patch.

### Step 8: Check Event Viewer for the Real Error
1. `Win + R` → `eventvwr.msc` → **Windows Logs** → **Application**.
2. Find **Error** at the crash time—note **Faulting module name** (e.g. `nvwgf2umx.dll` = GPU driver).
3. Update that driver from NVIDIA/AMD/Intel, not a random forum "fix."

### Step 9: Reinstall Clean
**Settings** → **Apps** → uninstall → reboot → install fresh from the official site. Avoid leftover folders in `%AppData%` only if support tells you to remove them—back up licenses first.

## Gaming-Specific Quick Checks
* Verify game files in Steam/Epic.
* Disable overlays (Discord, GeForce Experience overlay) one at a time.
* [Optimize Windows for gaming](https://www.mytechnician.tech/tips/optimize-windows-11-for-gaming/) after the single title launches reliably.

**Browser specifically?** Chrome has its own set of causes: [fix Chrome crashing on Windows 11](https://www.mytechnician.tech/tips/fix-chrome-crashing-not-responding-windows-11/).

## When It Is Not the App
Multiple programs fail with the same `0xc0000005`—run `sfc /scannow` and RAM test from the [freezing/crashing guide](https://www.mytechnician.tech/tips/fix-windows-11-freezing-crashing-randomly/). Antivirus quarantine may have deleted a shared DLL—check **Protection history** in Windows Security.

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Source: https://www.mytechnician.tech/tips/fix-app-crashing-wont-open/ — My Technician, free Windows 10/11 troubleshooting guides.
Related tool: PC-Troubleshooter (PC-Troubleshooter is a system diagnostic and repair tool for Windows 10 and Windows 11—hardware, drivers, network, and common fixes in one app.) — https://www.mytechnician.tech/apps/windows-troubleshooter/
More guides: https://www.mytechnician.tech/llms.txt