Download Windows 10 KB4494440 to fix virtual drive errors


Milan Stanojevic
by Milan Stanojevic
Deputy Editor
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Download KB4494440 for Windows 10 v1607

This month’s Patch Tuesday updates landed with a plethora of bug fixes and improvements. These include both security and non-security updates for all Windows 10 versions.

If you’re running Windows 10 v1607, you can now download and install KB4494440 on your machine. This build takes the existing version of Windows 10 Anniversary Update to build version 14393.2969.

This build didn’t introduce any new changes to the operating system. However, there are some important quality enhancements that make this update worth downloading.

In this article, we are going to provide you with a brief overview of some of KB4494440’s key improvements, and known issues.

KB4494440 major improvements and fixes

Security flaws fixed

Microsoft recently discovered a new side-channel vulnerability in Windows 10 and named it as Microarchitectural Data Sampling. This security flaw targeted various 64-bit versions of Windows. Thankfully, Microsoft fixed this flaw in this release. 

Zone transfers failure

KB4494440 fixed an issue that was restricting zone transfers over TCP. This bug can only appear during a transfer case involving primary and secondary servers.

1309 error message

Microsoft addressed an issue that was popping up 1309 error message.  The bug appeared during installation or removing of some file types saved on a virtual drive.

KB4494440 known issues

As a matter of fact, Microsoft acknowledged a total number of four known issues that came along with KB4494440.

Microsoft warned its users that they may encounter the error 2245 (NERR_PasswordTooShort). Notably, this bug causes cluster service to fail.

This error message appears if you set 14 or more characters for the Minimum Password Length group policy setting.

Moving further, the second bug is related to some specific operations that may fail to complete. The tech giant says that you may encounter the following error code while renaming your files and folders: STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)

Microsoft suggested some temporary workarounds to fix these issues. You can expect a permanent fix in the upcoming release.

Comment down below if you are experiencing some KB4494440 issues.

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