Description:
This freeze problem was previously reported as bug 127570 but that report incorrectly described the problem. The issue has now been correctly identified as involving password protected files and the Save AutoRecovery information feature being enabled. With Save Autorecovery enabled, when a password protected file is edited but the edits not saved, AutoRecovery continuously writes zero byte empty files to the backup folder until the edited file is saved. After a time, the backup folder becomes full of these zero byte files and the program freezes. This has been tested with Calc and with Writer password protected files. The UserProfile has been reset to factory but the problem is still there. The problem was evident in several previous version of LibreOffice. However, the problem does NOT occur in Safe Mode. 

Steps to Reproduce:
1.In Options Load/Save enable Save AutoRecovery information and set the interval to 1 minute as a test to save waiting time 
2.Create a file and save it with password protection.
3.Edit the file but do not save it.
4.Allow several minutes to pass so the program can start to try to save Autoreccovery information.
5.Open the specified backup folder and see the zero byte files being created. This will continue until the file is saved but will start again following any edits.

Actual Results:
Empty zero byte files are created in an attempt at backup which eventually fill the backup folder and cause the program to freeze.

Expected Results:
One AutoRecovery file should be created containing usable information. This should be automatically replaced. 


Reproducible: Always


User Profile Reset: Yes



Additional Info:
[Information automatically included from LibreOffice]
Locale: en-GB
Module: StartModule
OS: Windows 7
OS is 64bit

Version: 6.3.4.2 (x64)
Build ID: 60da17e045e08f1793c57c00ba83cdfce946d0aa
CPU threads: 8; OS: Windows 6.1; UI render: default; VCL: win; 
Locale: en-NZ (en_NZ); UI-Language: en-GB
Calc: CL