Windows 10 build 16251 bugs: install fails, BSoD and Outlook errors

By: Madeleine Dean
2 minute read

Microsoft rolled out a new Windows 10 Fall Creators Update build, adding a few more new features to the table. Windows 10 build 16251 lets you link your phone and PC, get web search results in Cortana without opening your browser, and also brings a faster boot up experience.

As expected, this build also brings a few issues of its own. In this article, we’re going to list the most common build 16251 bugs reported by Insiders. If you haven’t installed it yet, you’ll know what to expect in terms of issues.

Windows 10 build 16251 bugs

Install fails

Install issues are classic problems, so you shouldn’t be surprised if you can’t install build 16251. Rest assured, you’re not the only one.

I’m upgrading from 16241 to 16251 and am stuck in a reboot loop on the third restart. I see no error messages. I assume I will have to use advanced boot options to recover.

BSoD

If you really hate Blue Screen of Death errors, you’d better refrain from installing build 16251. Hundreds of Insiders got the following BSoD error message after installing the latest build:

Your PC/Device needs to be repaired.
A required device isn’t connected or can’t be accessed.
Error code: 0xc00000bb.

If you’ve encountered this problem, unplug all peripherals from your PC and then restart it. Plug your peripherals back in only after your PC has successfully rebooted.

Outlook issues

Many Insiders reported that Outlook 365 is affected by various issues after they installed build 16251. For example, they can’t send or delete emails, Outlook is slow and various error messages appear randomly.

A number of problems are happening with Outlook 365 after loading Build 16251.  Cannot send emails, cannot delete emails.  Outlook does not seem to be communicating to the email server as each time Outlook is opened the same emails are received.  Receiving several error msgs such as ‘Disk is full or not working’ (Significant room on disk), or ‘Insufficient resources available’.

For the time being, the only solution to fix these bugs is to uninstall the build.

These are the most frequent issues affecting build 16251. The only major issue are the BSoD errors, but we’re sure Microsoft will fix them in the upcoming build.

In two months’ time, the company will release the final version of the Windows 10 Fall Creators Update OS. This means that the upcoming builds will be more stable and won’t be affected by as many bugs.

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