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Uninstall & Reinstall Issues

Fix Programs Not Working After Windows Backup Transfer to New PC

Maira MehtabMaira Mehtab Sep 20, 2026 869 views

Question details

The user needs to fix desktop applications that fail to launch properly after transferring data to a new computer using Windows Backup and OneDrive.

Product
Windows Desktop Applications
Device & OS
Windows
Scenario
Migrating files, settings, and applications to a new computer via Windows Backup and OneDrive.
Observed behavior
Transferred programs fail to open, displaying error messages such as side-by-side configuration errors, missing application files, or invalid paths.
Before you start

Ensure you have an active internet connection and gather any required product keys, account credentials, or software licenses before you begin reinstalling your applications.

Solution 1Recommended

Perform a Clean Reinstallation of Desktop Programs

Because complex registry keys and hardware dependencies do not migrate reliably through Windows Backup, installing programs from scratch is the most effective solution.

Windows Backup is excellent for transferring files and system settings, but traditional desktop programs often rely on specific hardware profiles and deep system integration that cannot be easily copied over.

1
Uninstall corrupted application files

Navigate to Settings > Apps > Installed apps. Locate the non-functioning programs that were partially transferred, click the three-dot menu next to them, and select Uninstall to clean up residual files.

2
Download official setup files

Visit the official websites for the software you need to use. Download the most recent installer files, ensuring you select the correct version for your new PC's operating system architecture.

3
Install and activate

Run the newly downloaded setup files and follow the on-screen installation prompts. Once installed, launch the programs and input your license keys or sign in to your accounts to activate them.

License Limitations: Some premium software may require you to deactivate the license on your old computer before it will successfully activate on the new one.
Free Microsoft Office alternative

Set Up Your New PC Quickly with WPS Office

If your previous Microsoft Office installation failed to transfer via Windows Backup and you need an immediate solution to handle your documents, consider WPS Office. It is a highly compatible, free productivity suite that installs in seconds and easily opens all your legacy files on your new machine.

  1. 1. Download the free installer: Visit the official WPS Office website and click the free download button.
  2. 2. Run the setup wizard: Open the downloaded executable file and follow the quick prompts to install the suite on your new PC.
  3. 3. Access your transferred files: Launch WPS Office and directly open any of the Word, Excel, or PowerPoint documents you migrated via OneDrive or USB.
Fully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx)Lightweight installation that saves storage space on your new computerFamiliar tabbed user interface ensures a zero-learning-curve migrationBuilt-in cloud synchronization makes transferring future files effortless
microsoft office alternative - wps office

Frequently Asked Questions

Why do programs fail to open after using Windows Backup on a new PC?

Windows Backup primarily transfers personal files and basic settings. It does not reliably migrate complex registry entries, deeper system-level application files, or hardware-specific dependencies required by most traditional desktop software.

How do I fix the side-by-side configuration error?

This error usually indicates missing Microsoft C++ libraries that the application relies on to run. You can resolve it by downloading and installing the latest Microsoft Visual C++ Redistributable packages from the official Microsoft website and restarting your PC.

Will my OneDrive files automatically appear on my new computer?

Yes, provided you sign into the OneDrive application on your new PC using the same Microsoft account that you used on your old computer, your cloud-synchronized files will automatically populate in your File Explorer.

Do I need to repurchase software if I have to reinstall it?

No, you do not need to buy your software again. As long as you have the original product keys, digital licenses, or the login credentials for the account that owns the software, you can reinstall and reactivate it for free.