Uninstall a bunch of apps by invoking the UninstallString for apps matching DisplayName (passed on command line)

uninstall.py

# requires python 3.6 or later
# run as elevated user (requires admin permission for reg delete)
# python uninstall.py "<DisplayName>"
# you will get to confirm matching apps before any uninstall takes place

import sys
import winreg
import subprocess

def get_matching_apps(filter_string):
    paths = [
        r"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall",
        r"SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"
    ]
    matching_apps = []

    for path in paths:
      with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path) as key:
        i = 0
        while True:
            try:
                subkey_name = winreg.EnumKey(key, i)
                with winreg.OpenKey(key, subkey_name) as subkey:
                    try:
                        display_name = winreg.QueryValueEx(subkey, "DisplayName")[0]
                        if filter_string in display_name.lower():
                            uninstall_cmd = winreg.QueryValueEx(subkey, "UninstallString")[0]
                            matching_apps.append((subkey_name, display_name, uninstall_cmd, path))
                    except (FileNotFoundError, OSError):
                        # This specific subkey doesn't have a DisplayName or UninstallString
                        pass
            except (FileNotFoundError, OSError):
                # Reached the end of enumeration
                break
            i += 1
    matching_apps.sort(key=lambda x: x[1])
    return matching_apps

def main():
    if len(sys.argv) < 2:
        print("Usage: script.py <filter_string>")
        sys.exit(1)

    filter_string = sys.argv[1].lower()
    apps_to_uninstall = get_matching_apps(filter_string)

    if not apps_to_uninstall:
        print("No apps matched the filter.")
        sys.exit(0)

    print("Apps matching filter:")
    for _, display_name, uninstall_cmd, _ in apps_to_uninstall:
        print(" - ", display_name)
        print("     ", uninstall_cmd)

    choice = input("Do you want to uninstall all the above apps? [Y/N]: ")
    if choice.lower() != 'y':
        sys.exit(0)

    for subkey_name, _, uninstall_cmd, path in apps_to_uninstall:
      with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path, 0, winreg.KEY_ALL_ACCESS) as key:
        print(f"Uninstalling {subkey_name}...")
        subprocess.run(uninstall_cmd, shell=True)
        winreg.DeleteKey(key, subkey_name)

if __name__ == "__main__":
    main()