Stuch,
There are 2 possible reason for the 0044 error message to come up in the onecare installation.
1. GTOneCare failed to install
2. Windows Installer is corrupted or broke.
Try troubleshooting Windows installer first, follow this Knowledge Base Article how to resolve it.
http://support.microsoft.com/kb/555175/en-usThen use this tool, "OneCare Cleanup tool" before installing onecare.
http://go.microsoft.com/fwlink/?LinkID=81699If this steps wont resolve the issue. Contact support.
How to reach support
http://social.microsoft.com/Forums/en-US/onecareinstallandactivate/thread/30400b52-7f26-4ba0-bc18-17e305329d90