Hello,
I've been getting error code 0-0x00000001 for quite a while now(4 weeks)
I tried everything suggested,
Reinstalled R6,
Deleted battleye folder and reinstalled it,
Ran R6_be.exe as admin,
drivers are updated,
Widows is updated,
The issue is still reoccurring, there is also a whole fourm of people who have the same problem I do, this is the link to it
https://discussions.ubisoft.com/topic/178793/update-required-and-then-error-0-0x00000001-after-updating-to-the-latest-version?page=1