It seems like you're encountering issues installing third-party applications like GIMP and McKiev's Family Tree Maker on your new Windows 11 computer. The error message "The app was unable to start correctly (0xc0000005)" indicates a problem with the application's execution rather than installation.
Here are some steps you can try to troubleshoot and resolve the issue:
Run as Administrator:
Right-click on the installation file and select "Run as administrator" to ensure that the installation process has the necessary permissions to modify system settings.
Check System Requirements:
Ensure that your computer meets the system requirements for both GIMP and Family Tree Maker. Sometimes, compatibility issues arise if your system does not meet the necessary specifications.
Update Windows:
Make sure your Windows 11 operating system is up to date. Microsoft regularly releases updates that include bug fixes and improvements which may resolve compatibility issues with certain applications.
Antivirus and Firewall:
Temporarily disable any antivirus or firewall software you have running on your system. Sometimes, security software may block the installation or execution of certain applications.
Check Event Viewer:
Use the Event Viewer tool to check for any error logs related to the installation or execution of the applications. It may provide more detailed information about the cause of the problem.
System File Checker:
Run the System File Checker (SFC) tool to scan for and repair any corrupted system files that may be causing the issue. Open Command Prompt as administrator and run the command: sfc /scannow
Update Drivers:
Ensure that your device drivers, especially graphics and chipset drivers, are up to date. Outdated drivers can sometimes cause compatibility issues with applications.
Contact Support:
If the issue persists, consider reaching out to the support teams for GIMP and McKiev's Family Tree Maker. They may have specific troubleshooting steps or patches available to address compatibility issues with Windows 11.
Reverting to Windows 7 may not necessarily solve the problem, as it is an older operating system with its own set of compatibility limitations and potential security risks. However, if you continue to encounter difficulties and cannot find a resolution, you may consider reverting to a previous version of Windows as a last resort.
Remember to back up important files and data before making any significant changes to your operating system.
You can check GIMP system requirements from here.