Disk write error updating partition table

On August 2, 2016, Microsoft released Windows 10 Anniversary Update and hoping this "update" would literally be a revelation for all users.

When I sit down I notice that all of my torrent files were showing 'missing' in my client.

No big deal, maybe I just need to re-link them or something.

Then I open up Disk Management to see how much space the update took and see that one physical disk is showing 'unallocated'. Now I'm off to try and recover everything using Parted Magic.

It would appear at the time of this post that Windows completely wiped/formatted/deleted this drive. Wish me luck fellow sysadmins...." Now, I think you will agree with me when I say: Windows 10 Anniversary Update may affect and even delete other partitions on the same disk.

Well, if you browse social networks like Twitter, forums and Reddit, you will discover that more and more users are talking about "partition disappeared after installing the Anniversary Update" and some of them have successfully solved this problem.

Right now, in today’s post, we will show you 3 ways to help you to deal with this "partition disappears in Windows 10 Anniversary Update" problem.

Tip: Before rescuing the lost partition after installing the Anniversary Update, you had better not create new partitions in the unallocated or free space released by the lost/deleted partition, because recreating partition may overwrite some important files. Unfortunately, even though the Anniversary Update promises to be one of the best and most stable releases, building an operating system is a very complex task and partition will be lost after the installation.

Thus, some users choose to roll back to their previous version of Windows to get missing partition back.

(Here, you might be interested in this Full Guide on Rolling Back Windows 10 to Windows 7 or Windows 8.1 post.) Although this method can help to reuse the missing partition, we are unable to enjoy the new operating system.

Therefore, we had better try other methods to solve this issue "partitions disappear after installing the Windows 10 Anniversary Update". (Since updating to the Anniversary update earlier one of my partitions won't mount.

It's on a 3TB Seagate ST300DM001 HDD which I have split into 1 2TB partition and 1 1TB partition. Then, right-click or click the "missing" partition and then click "Change Drive Letter" or Change Letter button, and select a suitable letter () in the New Drive Letter list. (Picture below) Finally, tap "Apply" button on the top left corner and click "Yes" to apply pending changes.

Tags: , ,