eMail Archiving and Outlook

I have a number of email archives, in total about 5GB, stored as .pst files from Microsoft Outlook and going back to around 1998.

Without a copy of Outlook, the files have been pretty useless, just taking up space, but now I have an Office 365 subscription I can view and access them again.

A couple of points to note:

Using Outlook with your Microsoft account

My Microsoft ID account has 2 step verification enabled so that when I have installed Outlook on my laptop connecting to my Microsoft account requires me to generate an app password to use rather than my normal account password. This is because the app can’t prompt you to enter a security code when you try to sign in.

If you try to use your normal password you just get repeated requests to enter your password.

  1. Go to the Security basics page and sign in to your Microsoft account.(
  2. Select more security options.
  3. Under App passwords, select Create a new app password. A new app password is generated and appears on your screen.
  4. Enter this app password where you would enter your normal password.

Outlook blocked access to attachments

Some of the emails in the .pst files had attachments which Outlook refused to display due to security concerns.

I came across a method for enabling access to these attachments by making a change to the Windows Registry (Windows 7)

Only modify the Registry if you know what you are doing!! Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.

Add a new string value Level1Remove to the registry key


where the value(s) are the file extensions separate by ; eg: .exe; .url

To block specific file types add a new string value Level1Add instead.

Other Issues

On a separate issue, also came across an article on enabling the “Group Policy Editor” (gpedit.msc) in Windows 7 Home Edition – although the original article does include the following disclaimer.

DISCLAIMER: This tutorial has been shared for the sake of knowledge sharing. Patching system files or using 3rd party software might be dangerous for your computer. We do not recommend it and we’ll not be responsible if it harms your system.