--- a/man/install-mh.man
+++ b/man/install-mh.man
@@ -84,3 +84,47 @@ With
 .BR \-auto ,
 the current folder is changed to
 .RI \*(lq inbox \*(rq.
+
+.SH "UNDOING THE INSTALLATION"
+
+If you only ran install-mh to try out
+.B nmh
+briefly, you might
+like to remove the configuration files it creates. (This is
+not obligatory --
+.B install-mh
+creates only a few small files so simply leaving them in
+place will not cause problems.)
+
+Most
+.B nmh
+configuration information lives in the user's
+.B nmh
+directory; you can print its name by running
+
+.B mhpath +
+
+Basically all plain files in the
+.B nmh
+directory are configuration files and can be removed.
+
+.I Attention:
+The
+.B nmh
+directory holds not just configuration files! Its subdirectories
+contain all the emails you have written or received with
+.B nmh.
+Don't delete the
+.B nmh
+directory without carefully checking that there are no mail files
+that you might want later!
+
+The only configuration file that lives outside the
+.B nmh
+directory is your profile file. You can print its name by
+running
+
+.B echo "${MH:-$HOME/.mh-profile}"
+
+If you aren't using nmh any more you can delete this file, too.
+
