Step 2: On the page that opens,click on the link shown below.
Step 3: Check the check-box and enter your email address, where you would receive the link to download the hotfix
Step 4: The following screenshot shows the email received . Click on the link provided at the bottom of the mail to install the hotfix.
Step 5: The following screenshot shows the email received. Click on the link provided at the bottom of the mail to download the Hotfix. Note - This link download the a Self-Extractor zip file. Which will extract the actual Hotfix that you need to install.
Step 6: After download the Self-Extractor and run it. Click on Continue button
Step 7: Now choose the folder in which you want extract the Hotfix and click on Yes.
Note - You will find the Hotfix(a executable file) in selected directory
Step 8: Navigate to the folder where you have extracted Hotfix Windows6.1-KB2731284-v3-x64.msu and run it.
Step 9: Click on Yes button.
Step 10: Wait for the Installation completion.
Step 11: Click on Restart Now to reboot your computer. Note - without restart, changes will not reflect. also, You have to install MongoDB Server again
Still, if your facing Hotfix KB2731284 or later update is not installed, will zero-out data files problem, then try following work around.