Enabling RAM encryption causing Windows Shut Down function to not work properly.

[Blip of Consciousness]

Selecting Shutdown fails to shutdown system & returns to the windows login screen then to desktop as if Windows just started. Continuted attempts result in the same loop. Restart and Sleep seem to work normal.

Machine: HP 15 running Win10 (fully updated as of 10/10/19)
VC: 1.24

My tests (Shutdown = manually selecting shutdown button)
After enabling RAM encryption & retarting OS:
Shut Down (failed)>Shutdown (failed) > Hard Shutdown

After disabling RAM encryption & retarting OS:
Shutdown (success)>Boot OS
Shutdown (success)>Boot OS

After enabling RAM encryption & retarting OS:
Shut Down (failed)>Shutdown (failed)> Hard Shutdown

After disabling RAM encryption & retarting OS:
Shutdown (success)>Boot OS

[Enigma2Illusion]

Are you using VeraCrypt system encryption?

Per the release notes for RAM encryption:

Side effect: Windows Hibernate is not possible if VeraCrypt System Encryption is also being used.

.
If yes, have disabled Windows Fast Startup since this uses the Windows hibernate?

https://www.tenforums.com/tutorials/4189-turn-off-fast-startup-windows-10-a.html

[Blip of Consciousness]

Yes, I am using system encryption & you are correct that Fast Startup was causing the issue. I am now able to Shutdown normally now.

I've seen the release notes that were provided when 1.24 came out, however, there is no meantion that Fast Startup must be disabled in order to Shutdown. It is not immediatly obvious (to me at least) of the connection. Perhaps the documentation should be updated for clarification? Also, disabling Fast Startup is 2 lines of code. Would it be possible to have VC disable this when selecting enable RAM encryption? Or at least output that the user needs to disable it? Just Ideas. Anyway, thank you for addressing this issue. Everything works as it should. Thank you Enigma.

[Enigma2Illusion]

I agree. I have previously created a feature request to have VeraCrypt disable Windows Fast Startup due to impacts on VeraCrypt and now RAM encryption with system encryption.

https://sourceforge.net/p/veracrypt/tickets/180/

[Mikael]

@enigma2illusion,

I have encrypted the windows partition, and I enabled ram encryption and disabled hibernation to avoid the issue like the issue above however should sleep mode be disabled as well or its fine?

[Enigma2Illusion]

I don't know if sleep mode will cause issues with VeraCrypt. Most of the forum postings I have seen involve the hibernation file. Also, many people confuse sleep mode with hibernation modes and vice versa.

https://www.howtogeek.com/102897/whats-the-difference-between-sleep-and-hibernate-in-windows/

[Mounir IDRASSI]

Sleep mode doesn't cause any problem with RAM encryption because in this case the machine RAM and disk stay in the same state.