BCUninstaller/Bulk-Crap-Uninstaller · error · IOException

{deploymentResult.ErrorText}

Error message

{deploymentResult.ErrorText}

What it means

An IOException thrown by `AppManager.UninstallApp` when a `PackageManager.RemovePackageAsync` operation completes with `AsyncStatus.Error`. The exception message is the raw `DeploymentResult.ErrorText` returned by the Windows deployment stack, which typically describes why the package could not be removed (permissions, package in use, not found, policy). The original `ErrorCode` is printed to console but not wrapped into the exception.

Source

Thrown at source/StoreAppHelper/AppManager.cs:44

            var packageManager = new PackageManager();

            var deploymentOperation = packageManager.RemovePackageAsync(fullName);

            var opCompletedEvent = new ManualResetEvent(false);
            deploymentOperation.Completed += (info, status) => opCompletedEvent.Set();

            Console.WriteLine($"Uninstalling \"{fullName}\"");

            opCompletedEvent.WaitOne();

            // Check the status of the operation
            switch (deploymentOperation.Status)
            {
                case AsyncStatus.Error:
                    var deploymentResult = deploymentOperation.GetResults();
                    Console.WriteLine(@"Error code: {0}", deploymentOperation.ErrorCode);
                    Console.WriteLine(@"Error text: {0}", deploymentResult.ErrorText);
                    throw new IOException(deploymentResult.ErrorText);

                case AsyncStatus.Canceled:
                    Console.WriteLine(@"Uninstallation was cancelled");
                    throw new OperationCanceledException();

                case AsyncStatus.Completed:
                    Console.WriteLine(@"Uninstallation completed successfully");
                    return;

                default:
                    Console.WriteLine(@"Invalid status: {0}", deploymentOperation.Status);
                    throw new IOException();
            }
        }

        public static IEnumerable<App> QueryApps()
        {
            var packageManager = new PackageManager();

View on GitHub (pinned to 608321de98)

Solutions

1. Ensure the app is fully closed before uninstalling (check Task Manager).
2. Pass the exact full package name (e.g. from `AppManager.QueryApps()` output).
3. Run the operation with sufficient privileges; some packages require administrator.
4. Read the printed Error code/Error text to identify the specific Win32 deployment failure.

// Validate the package exists and is removable before uninstalling.
var existing = AppManager.QueryApps().FirstOrDefault(a => a.Id.FullName == fullName);
if (existing == null) throw new InvalidOperationException($"Package {fullName} not found.");

try { AppManager.UninstallApp(fullName); }
catch (IOException ex)
{
    // ex.Message is the DeploymentResult.ErrorText
    if (ex.Message.Contains("deployment") || ex.Message.Contains("in use"))
        /* prompt user to close the app and retry */
}

When it happens

Trigger: Uninstalling a Store/MSIX package that is currently running, owned by another user, protected by policy, already removed, or whose full package name is malformed/incorrect.

Common situations: Passing a partial or wrong package family name; app still running in the background; system/protected package that cannot be user-uninstalled; package installed for a different user account.

Related errors

• Dism output has invalid format
• Dism returned error code
• Not a Windows .exe file.
• Win32_Directory.Compress returned {ret}
• Process name can't be null or empty

AI-assisted analysis of BCUninstaller/Bulk-Crap-Uninstaller@608321de98 (2026-08-13). Data as JSON: /api/errors/fd90260b1089f238. Report an issue: GitHub.