Some AV (usually paid) check and update 4 times a day
Windows (<10) updates Weekly, with the malicious software tool being in the Monthly (10 obscures how often. I had earlier versions TELL ME when updates were available, which I usually did most) bundle.
OP
The point is, Your PC is in a state of flux if you allow fully automatic updates. Unless you dig, you don't know what-when.
This is not to say, don't do updates.
Most often 'Do them', just in a way
you know that there WAS a change.
That way when something misbehaves, you look at ALL the changes.
BTW is the PC (hosting Calibre) on a Wired portion of the LAN? It just might be interference . There are places in my
house where I see 12 usable signal (secured
) networks. A can't imagin what Appartment or Condo residents deal with
