Windows - Setting the Default Mail Program
kb.wisc.edu › helpdesk › pageMar 27, 2000 · Click on the Set Program Access and Computer Defaults item. In the Access and Defaults window, click on the Custom radio button to expand the Custom category. Underneath Choose a default e-mail program, click the radio button next to the program you want to use (e.g. Outlook, Thunderbird, Eudora). Click OK at the bottom of the window. Windows XP
How To Change Default Email Client
support.microsoft.com › en-us › topicYou can easily change your default e-mail client through the Internet options. Tips. To change the default e-mail client:- 1]Log on as Administrator 2] Open Internet Explorer, click the Tools menu, select Internet Options. Click Programs tab and select your email client from the drop-down list. Once selected, click OK/Apply button.