Windows 8.1 articles, fixes and updates - November 2020

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Windows 8.1 that have been released in November 2020. The list is daily updated.

• 4586845 November 10, 2020—KB4586845 (Monthly Rollup) Q4586845 KB4586845 November 20, 2020
• 4586823 November 10, 2020—KB4586823 (Security-only update) Q4586823 KB4586823 November 20, 2020
• 2820470 Delayed error message when you try to access a shared folder that no longer exists in Windows Q2820470 KB2820470 November 19, 2020
• 2858199 Surface supported operating systems Q2858199 KB2858199 November 13, 2020
• 4483874 High CPU usage by WMIPRVSE.EXE process at regular intervals in Windows Q4483874 KB4483874 November 12, 2020
• 891716 Deploy Windows Malicious Software Removal Tool in an enterprise environment Q891716 KB891716 November 10, 2020
• 890830 Remove specific prevalent malware with Windows Malicious Software Removal Tool Q890830 KB890830 November 10, 2020
• 4577586 Update for the removal of Adobe Flash Player: October 27, 2020 Q4577586 KB4577586 November 2, 2020
• 4009470 Windows 8.1 and Windows Server 2012 R2 update history Q4009470 KB4009470 November 2, 2020