Strange that this happens. Do you have Ndless installed by the way?
No other OS or app isn't installed.
My document is empty.
Booting Progress bar means two possibility (I think)
ⓐ Calc was normally get into hibernate mode for any reason
ⓑ There's power problem (battery or capacitor) occured, so calc was shut down accidently.
Is there any difference between ⓐ, ⓑ that can be examined after reboot?