How to reverse SD card as Internal Memory?

[AC Question]

I have Android M installed on Moto X Play smartphone. Recently I bought an SD card and used it as internal memory. But after doing so I realized that the memory card has slowed down my phone (because it was of lower quality I guess). I want to reverse this action now but don't know how. Kindly help.

 

[Rukbat]

Format the card - as external memory. (You'll lose everything on it - including apps - but there's nothing you can do about that except to make sure that the entire phone is backed up. See Backing up an Android Device.)

 

[pkcable]

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