virtualbox.org

After I re-installed my Win 8.1 OS, Virtualbox doesn't work at all.
Although I enabled Virtualization in BIOS, the error code is the same.
Before re-installing the OS, it worked normally.
What happened?
Attachments are error msgboxes.
I'm sorry it's in Chinese.

Take a look here:
viewtopic.php?f=6&t=62615
especially the first post in red.

Roll back to 4.3.12 or earlier to get Virtualbox working again, or use 4.3.15 to help troubleshoot the glitch.

(The clue, by the way, was the "error in supR3hardenedWinRespawn" title on the second error box. That's the error coming from 4.3.14's glitch)