Windows 7 SMB Error (can't access network folders), thanks Microsoft.

In January 2019, MS released some updates which blocked SMB access.  This post wil lbe out about Windows 7, but there could be other users/OS effected.

The problem update we found and blocked was KB4480970, but also MS says KB4480960 was a problem.

They released a fix for this, by udated later in the month called KB4487345.

This patch got rolled up into the February and then the March Rollups.  See KB4486563 and KB4489878 (for March).

A good guide to  te issues, and some links to search the MS catalog for standalone patches/updates is:

https://borncity.com/win/2019/01/12/fix-for-the-windows-7-smb-network-bug-caused-by-update-kb4480970-kb4480960/


Other details:
The offending update
https://support.microsoft.com/en-us/help/4480970/windows-7-update-kb4480970
Location to D/L
http://www.catalog.update.microsoft.com/Search.aspx?q=4489878

The Fix
http://www.catalog.update.microsoft.com/Search.aspx?q=KB4487345
March Rollup
https://support.microsoft.com/en-us/help/4489878/windows-7-update-kb4489878
Location to D/L
http://www.catalog.update.microsoft.com/Search.aspx?q=KB4489878

First look writeups of the problem, from borncity
https://borncity.com/win/2019/01/09/netzwerk-issues-with-updates-kb4480970-and-kb4480960/

Windows 10 Updates and Problems

Resources:
https://www.thewindowsclub.com/windows-10-creators-update-fails-install

https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/how-to-upgrade-to-windows-10-version-1803-spring/617a37da-8fc0-4f33-a3eb-59fe9082f925

Note, how to still get Windows 10 upgrade 'free'
https://www.groovypost.com/howto/download-windows-10-free/

Allow Domain PC/Laptop to Get Updates Independently

Easiest is to change registry

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU]

Set
"UseWUServer"=dword:00000000

reference
https://superuser.com/questions/32340/how-to-enable-windows-update-over-the-internet-for-domain-computers-code-8024