The January 2019 Windows Update rollup (released January 8, 2019 – KB4480970) has left some Windows 7 users frustrated and unable to access shared folders. The issue is also affecting Windows Server 2008 R2.
If you are currently using Windows 7 or Windows Server 2008R2 then you might find problems with your network shared folders after installing this rollup patch but also suffer issues with RDP and other connectivity.
The issue, which can also be caused by a smaller security patch (KB4480960), can leave users with errors attempting to reach shared folders. The cause appears to be tweaks made to security settings on the host machine.
There are unsupported work-arounds being suggested, but the best option, for now, is to uninstall the two affected patches which _should_ make things work normally again.
In the past this sort of thing would be picked up if you operated a test environment. Sadly, these days, very few people take the time (and £££) to maintain such a thing and the first many of us know if when something breaks.
It is also a good rule of thumb to allow Microsoft patches a little while to mature, just in case this sort of thing happens. But not too long to leave systems potentially open to abuse.
For now, simply log into the affected machines (you do have a local admin account right?!) and remove KB4480970 and/or KB4480960 before rebooting and you should be aok again.
If you don’t have a local admin account, or you’ve forgotten the details and need some help drop me a line, I have some magic tricks up my sleeve to save the day!
Via email or call on 01726 247257