information disappeared from file

But in case nothing of listed below don't work for your issue, then you need to try how to repair word document

It is the most effective blog about microsoft word issues - http://www.techrepublic.com/blog/10-things/10-plus-ways-to-recover-a-corrupted-word-document/

Here is the address for manual guide: http://smallbusiness.chron.com/recover-microsoft-word-office-documents-windows-7-64163.html

When you restart a Microsoft Office program after a power failure or similar problem, the program automatically opens any recovered files. If for some reason the recovery file didn't open, you can open it yourself.

1. On the Standard toolbar, click Open.

2. On the Show pop-up menu, click All Documents.

3. Locate the folder that contains your recovery files.

Each recovery file is named "AutoRecover save of file name."

4. Open the recovery file.

5. Click Save.

6. In the Save As box, enter the name of the existing document.

7. When you see a message asking whether you want to replace the existing document, click Yes.

Any recovery files that haven't been saved are deleted when you quit WordTips

• If you can't open the recovery file, you can try to recover the text from the damaged file.

• To find out or change where your recovery files are stored, click Preferences on the Word menu, and then click File Locations.