indirect questions

When you use indirect questions, you MUSTN'T change the word order or add auxiliary verbs: these are not questions anymore, even if you use question words to introduce them. 

The correct word order in indirect questions is 

wh- word + subject + verb

Compare: 

What do you think about this? (direct question)

I don't know what you think about this. (indirect question)

Where does she live? (direct question)

I can't remember where she lives. (indirect question)

She wants to know what we are going to do later. 

You need to think about what you want to do. 

I don't know when I will be back. 

She explained how paintings are restored.