Defraggler problem with audio and Virtual Box

Hello everyone,

I have executed the defraggler in my laptop, optimizing the SSD and defraggling the the HDD. I have a Virtual Machine in the HDD that after the defrag, it began to work much slower, it is impossible to work there.

Furthermore, it is not detected the soundcard, so I cannot hear any kind of audio, neither the laptop speaker nor earphones.

Do you have any solution?