Password requirements

I had a hard time getting Avast to accept my new password.
I tried over and over and every one that I tried was rejected.
Clearly there are conditions for acceptable passwords that are not explained.

Can anybody tell me what they are?

What do you mean with avast?
The software? If so what product?
This webboard?
My.avast.com?
or…

I had so much trouble getting a new password that was necessary after this forum got hacked. I guess something got lost.
Here is my request for help that has gone unanswered!

Your software would not accept the new password I entered even though it was more than the required 7 characters long.
it seems that there are other criteria than length that need to be fulfilled, but you dont say what they are.
I use “Password Safe” to manage my passwords and generate new (strong) ones, but they, the strong passwords dont seem to work in avast.

I have after much struggle managed to make one up myself that Avast will accept. It should not be so difficult.

It was advised to choose a new password, not required.

Password Safe? Why not use the human brain?