Partitions Disappear after Windows 10 Update

In August 2016, Microsoft released Windows 10 Anniversary Update, hoping this will be a revolution for all Windows 10 users. Unfortunately, some of them encounter a big issue that is their partitions disappear in Windows 10 Anniversary Update. Although it’s been a long time since this update, we still rank it meaningful to show users the solutions to this issue in case that the similar problem occurs again.

Solutions to Partitions Disappear in Windows 10 Anniversary Update

How to recover lost partition after Windows 10 Anniversary Update? Frankly speaking, there are 3 ways that deserve trying.
Way 1. Reset Drive Letter
The first trying here is to reset drive letter. Open Disk Management and check if all your partitions have a drive letter. If not, you can right the partitions and add a new drive letter to them. Restart your PC and check if the error persists.
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Way 2. Restore Lost Partitions
The second choice is to recover the lost partition. First of all, you need to prepare professional partition recovery software like MiniTool Partition Wizard. Then follow the wizard to fix partition disappeared after installing the Anniversary Update.

MiniTool Partition Wizard Pro

Step 1. On the main interface, select the disk that suffers from partition loss and choose “Partition Recovery” feature.
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Step 2. Set a canning range for the target disk. Usually, you can choose “Full Disk” or “Unallocated Space” to continue. If you know exactly the specific sector ranges of the lost partition, you can also choose the third one.
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Step 3. Here choose a scanning method. You can select “Quick Scan” to save time. If it does not work, try “Full Scan” then.
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When you see the scanning results, view the partition information carefully. Then tick the ones you need. Note that partitions unchecked will be deleted after partition recovery. You should be very careful.
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Step 5. Finally, click Apply button on the toolbar to start partition recovery.
Step 6. Still, there is one more thing you need to do. Partitions recovered lacks drive letters. To make them appear in Windows Explorer, you should assign them drive letters. Read Change Drive Letter to if you need any help.
Way 3. Roll Back to the Previous Version
If both the ways failed, you may consider rolling back to the previous stable Windows 10 before Microsoft offers an effective workaround. You can do a system reset, system image restore or clean install to achieve this aim. Here, you might be interested in this Full Guide on Rolling Back Windows 10 to Windows 7 or Windows 8.1.
Now the solutions to missing partitions after Windows 10 Anniversary Update are explained. If your partitions disappear after a Windows update, you can have a try on these ways.


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