I have one computer that has 2 data HDD's. I rotate between W10AU with W10 insider SDD's for the OS. If by chance I forget to remove the HDD's when W10 insider is used or updated, the installation will stop and request to scan one of the HDD's for errors. Often it will tell me that the recycle bin has been corrupted in the process. So when I update/use an insider version, I remove the HDD's and use a portable USB drive. This seems to work. If I forget to disconnect the portable USB drive and insert the W10AU, the portable will report corruption in the recycle bin. Twice in the past, one HDD became "RAW". There is a reason why this does this, I just can't put my finger on it yet. As long as the drives stay with the OS, everything is ok.