Uninstall the "Send to Bluetooth Add-In"

First find the location of the Add In dll:

to find the btsendto_office.dll go to File/Options/Add-In select the Send to add in and observe the path at the bottom of the screen

Close all office applications and unregister the Add In with:

regsvr32 /u "C:\Program Files\ThinkPad\Bluetooth Software\btsendto_office.dll"

If you want re-register the Add In with

regsvr32 "C:\Program Files\ThinkPad\Bluetooth Software\btsendto_office.dll"

Check if 32bit or 64bit version of Office is installed

1. Open Microsoft Office 2010 application like Microsoft Word on your computer.

2. Once the application window is opened, goto File menu and click Help option.

3. Check for the information on right side of this Help window. You should see Office version under “About Microsoft Word’ option as 32bit or 64bit next to version details.

MS Word 2010 crashed when opening document

If you got this problem, it may come from an addin of MS Word 2010. Below is the way to help you find out which addin causes this problem.
1. Open MS Word in Safe Mode: hold Ctrl key >> click MS Word icon >> choose Yes in a dialog displayed
2. Click File menu >> Addins >> click Go button in the Manage: Com-in Add
3. Clear the checkboxes to disable all addins
4. Close MS Word
5. Try to open your document again. If MS Word can open the doc, it means an addin caused this crash.
6. Open MS Word in Safe Mode again
7. Enable one by one addin and open the doc to check when it's crashed ==> the bad guy -:)