No. Because

Msg 8921, Level 16, State 1, Line 1

Check terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous...

Before you change maxdop, could you look through the startup messages in your error log and post any that reference NUMA?

Create a new session, pick the events, add filters, run session. That's the basics, but...

Well, three jobs. You don't need to use maint plans for Ola's stuff.

Why is that a problem? Every single prod SQL instance I set up maintenance on gets 4 jobs...

Please post EXACT descriptions and all error messages encountered, along with a precise timeline of exactly what happened.

Alternately, restore from your last good backup.

There's always at least one filegroup in a database. If you haven't created any filegroups, then all files will be part of the PRIMARY filegroup and data will be written...

That's not how SQL Server works. You enter passwords to connect to the instance and then the login's permissions determine whether or not it can access the databases.

No, I was more thinking about someone accidentally deleting a file....

Try working through this: https://www.simple-talk.com/sql/backup-and-recovery/the-sql-server-instance-that-will-not-start/

Alternatively, if you want advice, please post exact error messages and detailed description of exactly what happened.

You need to google and do some research because it's not clear what edition you need, whether you can use the free Express or not, and we don't know your...

Not offhand, and gut feel is that...

Quote from Steve's post

You'll probably get Oracle questions answered faster on an Oracle forum

Those latches are to do with parallel table scans. Two steps I would suggest

- Increase cost threshold for parallelism (especially if it's at the default of 5) and consider changing...

Let me quote the post right above yours

SQL passwords are stored with a on-way hash. They...