GUIDE TO FIXING: THE CAS SYSTEM WAS UNABLE TO INITIALIZE: CLIENTHANDLER: INITIALIZATION ER

[Josep244]

Guide to fixing Launcher error: The CAS System was unable to initialize: ClientHandler: initialization error: failed to create storage component.

After downloading the client uTorrent makes the folder and files readonly (to protect the integrity of the torrent contents...).
As a result when you start the client you get the infamous CAS System error:

https://i.gyazo.com/0be56b58ac7f199c7491bd19b937236b.png


Further keywords to aid finding this guide:
failed fetching the CDN configuration file
tact::ClientHandler::Create failed: E_NOT_AVAILABLE

To FIX this remove the readonly flag from the folder and it's contents:
Rightclick the folder, find the checkbox for the read-only flag, untick (make it empty), then press Ok / Apply.

https://i.gyazo.com/7b666a5e70c1cb6cf0f0f0a0b9535922.png

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[nyevid]

uh....

this is already in shocker's troubleshoot list.
https://forum.wow-freakz.com/WoW-Legion-client-t452441.html

and the CDN error fix is rather different than what you wrote.

"To FIX this remove the readonly flag from the folder and it's contents:
Rightclick the folder, find the checkbox for the read-only flag, untick (make it empty), then press Ok / Apply. "
is the most basic troubleshoot for all kinds of problems.

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