Bitdefender Safe Files
Bitdefender ‘ provide antivirus/Firewall/Security software which you may have installed on your computer. One of the features of Bitdefender is an item called ‘Safe Files’, which is designed to stop applications from saving files on your computer. A number of Payroll Manager users have reported that ‘Bitdefender Safe Files’ is causing problems to them by blocking their payroll data from being saved.
If you are experiencing similar problems then please refer this issue to Bitdefender. Their help page on this issue is below, which gives details of how to fix this problem.