Windows upgrade assistant issue with secondary drive

[Windows Central Question]

I have two drives, an ssd and a regular drive. While using Microsoft's upgrade assistant tool it failed to bring the secondary drive online. This showed up as un allocated.

The only thing I could do was format the drive. Fortunately I had a backup to recover, but I was never warned that I could lose my data on my secondary drive.

Have you guys used this tool? and have you seen anything like this?

 

[Maurizio Troso]

I have two drives, an ssd and a regular drive. While using Microsoft's upgrade assistant tool it failed to bring the secondary drive online. This showed up as un allocated.

The only thing I could do was format the drive. Fortunately I had a backup to recover, but I was never warned that I could lose my data on my secondary drive.

Have you guys used this tool? and have you seen anything like this?

Windows 10 Anniversary Update common problems and how to fix them | Windows Central

 

[Chintan Gohel]

I have two drives, an ssd and a regular drive. While using Microsoft's upgrade assistant tool it failed to bring the secondary drive online. This showed up as un allocated.

The only thing I could do was format the drive. Fortunately I had a backup to recover, but I was never warned that I could lose my data on my secondary drive.

Have you guys used this tool? and have you seen anything like this?

it's always recommended to do a backup right before a major update like the anniversary update. Just in case

If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join Windows Central.