Character substitution in Microsoft Pinyin IME for typing 「」(直引号)
1, You can use the software &quot;Auto-hot-key&quot;
Create a script and add the following lines
[::「
]::」

Run the scripts.
When you type [ on the keyboard it will be 「. When you type ] it will be 」. This solution will work regardless of Input Methods. This is neat and the most recommended solution.
You can also use different hotkeys, with or without modifiers, as you like. such as
^[::「
^]::」

means when you type ctrl + [ on the keyboard it will be「.
And if you are using 「」 as a Chinses counterpart of &quot; &quot; you can use the following script
+'::
 {
   toggle := !toggle
   if (toggle)
    {
      sendinput, 「
    }
   else
    {
      sendinput, 」
    }
 }
return

When you type Shift + ', it will send 「 and 」alternatively, same as when you are using the double quotes in English.
Auto-hot-key download and document link: https://www.autohotkey.com/
2, Here is an easy walk around that allows you to type 「」
Open MS PinYin settings, and choose Lexicon and self-learning

Choose add or edit existing user-defined phrase

Add the following phrase

Then type

No additional software, but need some setup.
3, MS Pinyin Trick
When using MS Pinyin, type uubd, you will find the one you need. Maybe you need to press &quot;+&quot; a few times to find them though. This solution needs no setup.