Text Message Inbox

There are two ways you can do this. The easiest way is to get advanced configuration tool. Install it to your phone and then run it. Go to messaging and click the + sign to open the list of tweaks. Click threaded SMS and set it to Disable, click done and yes to reset your phone. i attached advanced configuration tool to this post.

The second way is to open your favorite reg editor (it could be one on your phone or one that connects your computer to your phone) and edit the following:

HKEY_CURRENT_USER\Software\Microsoft\Inbox\Settings

Under that key, created a new DWORD value named SMSInboxThreadingDisabled  and set value to 1

After that turn your phone off and then back on and that's it. Conversation view will now be disabled.

If you ever want to get conversation view back set the value for SMSInboxThreadingDisabled to 0 or delete the entry and then reboot your phone.