Try to delete the store cache. In order to do so you can perform the next steps:
- In the desktop interface press Windows key+ R.
- Typ WSReset.exe
Been there, done that, didn't get the Tee shirt and ended up with0xC1900101-0x40019
The 0x40019 is referencing a 'location' and it will take a Microsoft support/development asset to identify where that location is that is failing. There is most likely a log which given sufficient amount of expertise, can pinpoint the specific driver that is failing and permit a) recreation with debugging information to identify the reason for the failure and point to the OEM (most likely HP in the case of my Envy 23).
If anyone in the thread can elaborate on the 'logs' they have located which hints at, more specifically than then number 0x40019, the specific driver that fails, it would expedite the analysis. To date, after quite a bit of wandering through every *.log file with a relevant time/date stamp, I have been unable to isolate to a specific DLL/EXE.
HP should be all over this failure, but a search on hp.com for 0xC1900101-0x40019 yields little.
For what it is worth, HP pavilion dm4 upgrade to 8.1 from win 7 worked <almost> flawlessly. The 'almost' disclaimer was for the finger print reader which required some work to return to functionality after loading 8.1 successfully.