Drivertoolkit & reginout had been removed. I reinstalled them and used IOBit's Powerful Uninstall on them.
ASC9's license expired; I uninstalled it. After uninstalls, before removing ASC, I did a registry scan. At reboot: critical error--Cortana & start menu. Restore point would not work, I had to resort to a registry backup.
Tweaking could not run its pre-repair commands. FixWin proved that SFC & DISM still fail.
The one thing I did not remove is DAP10, I can not do large downloads without it. Chrome & Firefox simply can not handle them. They no longer integrate with DAP, so I hafta get the url from the download page and run it manually.
For Example: I need to get NetFramework 4 in order to run Seagate diagnostics on the Barracudda with an old, undead Dell Dimension running XP.