How to disable device encryption SD card in Windows phone 10 ?

[shakilurahmed]

Hello. Suddenly I was enable device encryption. Then I forget it . Few days later , I got some problem such as photo ,snapshot couldn't save , couldn't delete anything from SD card. I downloaded some important document file after few min I can't find in SD card . I copied from laptop but after disconnected from laptop couldn't find selected file. Then decide to format SD card but can't format . I got this message" widnows was unable to format?? "
Then I tried PC third party app Sdformatter it also showed" write protected"
Now , I want to know that How can I solve this problem?
Is there any solution experts? :unhappysweat::unhappysweat:
#Device: Lumia 535
Windows phone 10 TP Redstone build .

 

[balakumar rajaram]

I got the same problem here in 640xl and 630nokia , i tried all solution available in internet ... We need to roll back to windows 8 .this must be our last hope ...