A family of Microsoft word processing software products for creating web, email, and print documents.
Is "Read my document" a third-party add-in? Generally, have a look at https://support.microsoft.com/en-au/office/view-manage-and-install-add-ins-for-excel-powerpoint-and-word-16278816-1948-4028-91e5-76dca5380f8d .
For Startup folder add-ins and COM add-ins, read https://learn.microsoft.com/en-us/troubleshoot/microsoft-365-apps/word/issues-when-start-or-use-word .
Note that the manufacturer of the add-in should have the specific information for installing/uninstalling. Try their support site.