Runaway deletion problem

Hello,

Thank you for posting on Microsoft Community.

This issue might occur due to mouse or trackpad issues. However, in order to resolve this issue let us check the following:

As a first step, let us try launching Word 2013 in the Safe Mode and check if it resolves the issue.

1. Hold the Windows key down and press R.

2. In the Run box that opens type winword /safe (note there is a space between winword and /) and click on Ok.

3. If you are not able to open the Run box then follow this step; click on Start > All Programs > Accessories > Run and type in the command winword /safe and click on Ok.  

This action will open Word 2013 in the Safe Mode. Check if the erratic cursor issue resolves while working in the Word Safe Mode.

If the cursor works fine in safe mode, disable the Add-Ins for the application and check the result.

• In Word 2010 click on the File tab (top left corner).
• Go to Options.
• Click on the Manage drop-down button and select COM Add-ins and then click on Go.
• Try disabling the Add-ins – clear all the options and click on OK to save the changes made. Note: In case you see some Add-ins getting checked again after applying OK it is still fine. Ignore and proceed further.
• Check now if you are able to use work normally without the erratic cursor issue. 

In case the above step does not resolve the issue then after completing COM Add-Ins follow the same steps as above and check under Word Add-Ins to see if there are any Add-in there which needs to be disabled. If yes, proceed with the same steps as mentioned above.

Check if the above step helps you to resolve the issue.

Note: In case if it works briefly and the issue returns after a while then make sure to navigate back to Com Add-Ins and Word Add-Ins (following the steps as detailed above) and remove / un-install the Add-ins from the list.

If the issue does not resolve in the Word Safe Mode, then check if you are using a wireless mouse or trackpad on your laptop/computer. Check if you are inadvertently touching the trackpad while working on Word. If you are using a wireless mouse try removing the wireless mouse and using a wired mouse for some time.

Check the above and let us know the result.

Thank you.