Pro Video Formats will not stay "installed."

dprowe57 wrote:

Thanks for your help, Luis. Will look into doing that when I have a day free.

Re: the mega.mac.megaupdater.plist (Mega Limited - installed 2020-11-12) -- what's the best way to uninstall that for now?

[Loaded] mega.mac.megaupdater.plist (Mega Limited - installed 2020-11-12)

In Finder, press Command-Shift-G and paste

~/Library/LaunchAgents/mega.mac.megaupdater.plist

and drag the file to the trash, then restart or logout and login again.

There may still be remnants of that stuff lying around, but this is what makes the stuff every time you login.

lso, are you able to direct me to directions (perhaps a video or step-by-step) on how to do a clean install and migration of only the user accounts? You've been incredibly helpful -- Dana

Not a video, but a short step by step:

1) Make a full backup, preferably two: a Time Machine, and a full bootable clone, on a separate drive. You can use the free version of SuperDuper! to make this clone, or perhaps Carbon Copy Cloner.

NOTE: it is important to have more than one backup, since you're about to erase the main drive

2) Erase and install. I advise you to create an installer on a usb stick, to avoid having to install over the internet (slow).

Instructions here: How to create a bootable installer for macOS - Apple Supporthttps://support.apple.com/en-us/HT201372

NOTE: to erase, start from the usb installer disk, choose Disk Utility and erase the whole internal drive (not just the volumes inside); choose APFS with GUID Partition Map.

4) Quit Disk Utility and start the installation on the now empty drive

5) When asked if you want to transfer information, choose "From another mac, disk or Time Machine backup", and select the backup you made in step 1.

IMPORTANT: Migrate ONLY the user accounts (NOT applications, NOT settings, or other files)

4) Install any applications you really need, from the App Store or the respective developers' sites.

You have a lot of cruft from years past, plus some things that I would not let near my mac, like this:

[Loaded] mega.mac.megaupdater.plist (Mega Limited - installed 2020-11-12)

This is a great way to get your mac laden with adware...

You still have stuff this many years old, like these:

3rd Party Preference Panes:

A 6|2m (? - installed 2009-02-12)

DivX (? - installed 2010-03-10)

Flip4Mac WMV (? - installed 2009-05-21)

This suggests that you have been upgrading in place, and across different macs, for over a decade.

I think you would benefit greatly from doing a clean install, followed by a migration of ONLY the user accounts.

Do you happen to have Chrome installed on this mac?

Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.