Looking for logging into the Oracle Toad As System site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Oracle Toad As System site. After that you can login as usual with your login credentials.
https://forums.toadworld.com/t/how-to-login-to-toad-using-domain-account/11753
https://asktom.oracle.com/pls/asktom/asktom.search?tag=users-with-sysdba-can-login-to-database-without-password
https://community.oracle.com/thread/3796786
https://groups.google.com/d/topic/comp.databases.oracle.tools/e0qWIp3jCb4
https://www.quest.com/de-de/products/toad-for-oracle/
http://in.bgu.ac.il/sharon/Documents/Toad.pdf
https://books.google.de/books?id=4qdUXFdokwkC&pg=PA21&lpg=PA21&dq=oracle+toad+login+as+system
https://asbenz.wordpress.com/2011/03/09/create-user-in-oracle-by-toad/
https://searchoracle.techtarget.com/answer/Restricting-users-from-connecting-through-SQL-Plus/Toad
https://stackoverflow.com/questions/2932134/is-it-possible-to-export-saved-passwords-from-toad
https://www.admin-magazin.de/Das-Heft/2016/12/Datenbankmanagement-mit-Toad-fuer-Oracle
https://docs.centrify.com/Content/Infrastructure/AppsDesktop/TOADforOracle.htm
https://dba.stackexchange.com/questions/28910/connecting-to-database-using-toad-in-windows