Action Center opens momentarily on left side of screen

LEOPEVA64 said:

What version of the OS do you have? Microsoft has already confirmed that this bug was fixed in build 17763.348:

Cumulative Update KB4482887 Windows 10 v1809 Build 17763.348

@Telos,

Your 17763.316 was from the February Patch Tuesday and is what you would expect to see if you rely on the automatic windows updates.

17763.348 was issued on 1st March and is an optional update (as it has no new security fixes). You can either get it now by clicking 'Check for updates' or wait until Tuesday 12th when this fix will be included in the next regular Patch Tuesday cumulative update (along with new fixes and security updates). That one will be automatically downloaded and installed by windows update.

Addresses an issue that may cause the Action Center to suddenly appear on the wrong side of the screen before appearing on the correct side.

Cumulative Update KB4482887 Windows 10 v1809 Build 17763.348 - March 1 Windows Update - Windows 10 Forums

Bree said:

@Telos, You can either get it now by clicking 'Check for updates' or wait until Tuesday 12th when this fix will be included in the next regular Patch Tuesday cumulative update (along with new fixes and security updates). That one will be automatically downloaded and installed by windows update.

Thanks. I'll wait to see what Tuesday brings.

Telos said:

Thanks. I'll wait to see what Tuesday brings.

That would be my choice in your situation. I have 17763.348 and confirm it fixes the Action Centre bug. These optional updates are previews of fixes to be included in the next Patch Tuesday one (the 'B' update), being so close I'd wait until that arrives automatically. See here for more about how these 'C/D' updates work...

Windows 10 monthly security and quality updates overview - Windows 10 Forums

The issue got even worse with the March 1 “fix”. It still appears on the left side of the screen but now it is flickering even when it goes to the right side... Nice job.