An error occurred installing IOS 6 (iPad 2)...How can this be fixed

How do I fix this error?

Could you be more specific as to exactly which error occurred, e.g. a number or a message?

Here is the list of possible errors:

http://support.apple.com/kb/TS3694

I have the same problem, but no specific number or message is given. It just says "an error occurred whlie installing io6".

Tried updating directly from settings and using connection with itunes, both same result.

Without a specific error message it'll make diagnosing the problem difficult.

So, my guess is that there could possibly be security software blocking things.

Check firewalls, virus software, etc... - even switching them off temporarily.