KB5001347 – Windows 10 1607 OS Build Update 14393.4350

Microsoft releases April security patch KB5001347 for Windows 10 1607 users. This cumulative update brings quality fixes and improvements along with updating the OS Build to 14393.4350. 

The key changes include improving security when Windows performs basic operations or while using input devices such as a mouse, keyboard, or pen. As usual, you may get this patch either through Windows Update, Microsoft Update Catalog, or via WSUS.


KB5001347 Changelog

Here are the key highlights of Build 14393.4350 –

  • Works upon a race condition that causes Windows PowerShell to stop working and results in an Access Violation error. This used to occur when you run multiple PowerShell scripts with transcriptions enabled. 
  • Resolves a bug wherein the system stops working when users sign out or disconnect from remote sessions.
  • Volgograd and Russia’s time zone stay updated from UTC+4 to UTC+3.
  • The Republic of South Sudan receives a new time zone for Juba i.e. UTC+2:00.
  • Resolves a heap leak issue on File Explorer that causes it to consume huge amounts of memory. 
  • Fixes shorter sleep time than defined on the below registry –
    • HKLM\Software\Microsoft\AppV\MAV\Configuration\MaxAttachWaitTimeInMilliseconds
  • Works upon an issue with high memory usage when performing XSLT transforms using MSXLM6.
  • Addresses an issue in “spaceport.sys” that generates a stop error 0x7E on the computer.
  • Fixes vulnerability issues on the updates containing – CVE-2020-1036 and CVE-2020-17049.
  • Users may now specify up to 255 columns while using Jet Text installable indexed sequential access method format i.e. IISAM.
  • Evaluates the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.

Apart from the above fixes and improvements, KB5001347 brings security updates for the following –

Windows Apps, Windows Input and Composition, Windows Office Media,

Windows Fundamentals, Windows AI Platform,

Windows Hybrid Cloud Networking, the Windows Kernel, and Windows Media.

Known issues on KB5001347 

After installing this security patch, you may encounter the error – 2245 (NERR_PasswordTooShort). 

The above error occurs if the “Minimum Password Length” group policy is configured to have 14 or more characters. So, better keep the characters in check and you won’t face any issue on Windows 10. 

How to Get this Update

You may follow either way to get the cumulative update KB5001347 on Windows 10 version 1607 –

1] Windows Update

  • Open Settings – Win + I.
  • Select Update & Security > Windows Update.
  • Head over to the right page and click Check for updates.
  • The pending updates will automatically get downloaded and installed on the device.
  • Once over, you will get a prompt to restart the device, do the same.

2] Update Catalog

If the automatic search doesn’t work, you may try the manual method as well. However, you need to first download and install the servicing stack (KB5001402). 

  • Next, visit Microsoft Update Catalog, type KB5001347 in the search field, and press Enter. 
  • Select the update that best matches your system architecture (x86, x64, ARM64) and hit Download.
  • Click the top link to start downloading the standalone package.
  • When the download completes, double-click over the setup file.

That’s it, your PC is now upgraded to Build 14393.4350.

3] Windows Server Update Services

The KB5001347 update will automatically sync with WSUS if you assign Products and Classifications as follows –

  • Product: Windows 10
  • Classification: Security Updates

Release Note

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