I decided to take this as an opportunity to clean up my installation of ESO.
I uninstalled the old one, defragged my hard drive, installed all windows updates, rebooted and am downloading a nice, clean, fresh installation of the game.
No launcher errors. Nothing to get confused or overwritten.
I figure if I tried the patch, got a manifest error and had to re-download most of the content anyway, I might as well bite the bullet up front and start with a solid foundation.
[Hard Mode Dungeoneers] is recruiting all players of all levels for this new Guild.
THIS IS A NEW-BUT-GROWING GUILD. We are focused on doing vet pledges, vet dungeons, getting achieves, & doing hard mode bosses.
Most active GMT+10 (Australia time zone) in the afternoon Mon-Fri and all day Sat/Sun.
Pst/email for info/invites.