I fix it with this way :
According to This biography , It says :
I had the same problem, it's incredibly annoying and there's strangely little posted about it on the interwebs. Anyway, here's how you fix it:
- Goto File in the upper left hand corner
- Options > Trust Center > Trust Center Settings > Privacy Options >
- Un-check the check box that says "Remove personal information from file properties on save"
- Hit OK.