Resolved issues in Windows 11

See a list of known issues that have been resolved for Windows 11 over the last six months. Looking for a specific issue? Press CTRL + F (or Command + F if you are using a Mac) and enter your search term(s) to search the page.


Resolved issues

SummaryOriginating updateStatusDate resolved
Installation of printers might fail when attempted over some network connections
This issue has been observed in devices which access printers via a print server using HTTP connections
N/A

Resolved
KB5006746
2021-10-21
10:00 PT
Custom printing properties might not be correctly provided to print server clients
This issue will not cause printing operations to fail, but clients might print with default settings only
N/A

Resolved
KB5006746
2021-10-21
10:00 PT
Installation of printers via Internet Printing Protocol (IPP) might not succeed
Affects organizations that share an IPP printer using printer connections
N/A

Resolved
KB5006746
2021-10-21
10:00 PT
Receiving a prompt for administrative credentials every time you attempt to print
This issue affects devices in environments in which the print server and print client are in different times zones.
N/A

Resolved
KB5006746
2021-10-21
10:00 PT
Compatibility issues with apps using some non-ASCII characters in their registry keys
Affected apps might be unable to open and might cause other issues or errors in Windows.
N/A

Resolved
KB5006746
2021-10-21
10:00 PT
Some applications on devices that have AMD Ryzen processors might drop performance
A L3 cache latency issue was observed on devices with AMD Ryzen processors after upgrading to Windows 11
N/A

Resolved
KB5006746
2021-10-21
10:00 PT
Compatibility issues with Intel “Killer” and "SmartByte" networking software
Internet speeds might be slower than expected on affected devices.
N/A

Resolved
KB5006674
2021-10-12
10:00 PT

Issue details

October 2021

Installation of printers might fail when attempted over some network connections

StatusOriginating updateHistory
Resolved KB5006746N/A

Resolved: 2021-10-21, 10:00 PT
Opened: 2021-10-13, 12:34 PT
Devices which attempt to connect to a network printer for the first time might fail to download and install the necessary printer drivers.

This issue has been observed in devices which access printers via a print server, using HTTP connections. When a client connects to the server to install the printer, a directory mismatch occurs, which causes the installer files to generate incorrectly. As a result, the drivers may not download.

Note: The printer connection methods described in this issue are not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations.

Workaround: IT administrators with admin privileges can still install printer drivers on the client through other means, such as copying packaged drivers from a known good package location. Only the automatic download and installation processes are impacted by this issue.

Resolution: This issue has been resolved in KB5006746.

Affected platforms:
  • Client: Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1909; Windows 10, version 1809; Windows 10, version 1607; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1; Windows 11, version 21H2
  • Server: Windows Server 2022; Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1909; Windows Server, version 1809; Windows Server 2016; Windows Server 2012; Windows Server 2008 SP2

Custom printing properties might not be correctly provided to print server clients

StatusOriginating updateHistory
Resolved KB5006746N/A

Resolved: 2021-10-21, 10:00 PT
Opened: 2021-10-13, 12:28 PT
Printing properties defined on that server might not be correctly provided to clients. Note this issue is specific to print servers and does not impact standard network printing. This issue will not cause printing operations to fail, however, custom settings defined on the server – for example, duplex print settings – will not be applied automatically, and clients will print with default settings only.

This issue results from an improper building of the data file which contains the printer properties. Clients which receive this data file will not be able to use the file content and will instead proceed with default printing settings. Servers which use default print settings and have no custom settings to provide to clients are unaffected.

Note: The printer connection methods described in this issue are not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations.

Workaround: IT administrators with admin privileges can still install printer drivers on the client through other means, such as copying packaged drivers from a known good package location. Additionally, clients can still be modified manually to adopt desired printer settings.

Resolution: This issue has been resolved in KB5006746

Affected platforms:
  • Client: Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1909; Windows 10, version 1809; Windows 10, version 1607; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1; Windows 11, version 21H2
  • Server: Windows Server 2022; Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1909; Windows Server, version 1809; Windows Server 2016; Windows Server 2012; Windows Server 2008 SP2

Installation of printers via Internet Printing Protocol (IPP) might not succeed

StatusOriginating updateHistory
Resolved KB5006746N/A

Resolved: 2021-10-21, 10:00 PT
Opened: 2021-10-13, 12:32 PT
Installation of printers using Internet Printing Protocol (IPP) might not complete successfully.

Note: IPP is not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations.

Resolution: This issue has been resolved in KB5006746.

Affected platforms:
  • Client: Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1809; Windows 11, version 21H2; Windows 10, version 1909
  • Server: Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1809; Windows Server 2022; Windows Server, version 1909

Receiving a prompt for administrative credentials every time you attempt to print

StatusOriginating updateHistory
Resolved KB5006746N/A

Resolved: 2021-10-21, 10:00 PT
Opened: 2021-10-15, 17:21 PT
After installing or later updates, you might receive a prompt for administrative credentials every time you attempt to print in environments in which the print server and print client are in different times zones.

Note The affected environments described in this issue are not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations.

Affected platforms:
  • Client: Windows 11, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1909; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10, version 1607; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1
  • Server: Windows Server 2022; Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1909; Windows Server, version 1809; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2
Resolution: This issue was resolved in KB5006746. If after installing KB5006746 you still receive the prompt every time you print, see Q1 in the "Frequently ask questions" section of KB5005652—Manage new Point and Print default driver installation behavior (CVE-2021-34481).

Compatibility issues with apps using some non-ASCII characters in their registry keys

StatusOriginating updateHistory
Resolved KB5006746N/A

Resolved: 2021-10-21, 10:00 PT
Opened: 2021-10-04, 12:18 PT
Compatibility issues have been found between apps using some non-ASCII characters in their registry keys or subkeys and Windows 11. Affected apps might be unable to open and might cause other issues or errors in Windows, including the possibility of receiving an error with a blue screen. Important Affected registry keys with non-ASCII characters might not be able to be repaired.
To safeguard your upgrade experience, we have applied a compatibility hold on these devices from installing or being offered Windows 11. If your organization is using Update Compliance, the safeguard ID for devices with Cốc Cốc browser is 35891494. The safeguard ID for devices with Aplicação Autenticação.gov is 36632506.

Affected platforms:
  • Client: Windows 11, version 21H2
Resolution: This issue was resolved in KB5006746. The safeguard hold is estimated to be removed in mid-November.

Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until the safeguard is removed.

Some applications on devices that have AMD Ryzen processors might drop performance

StatusOriginating updateHistory
Resolved KB5006746N/A

Resolved: 2021-10-21, 10:00 PT
Opened: 2021-10-20, 16:34 PT
Devices with AMD Ryzen processors might experience latency in the L3 cache after upgrading to Windows 11. Some applications sensitive to memory subsystems performance access time might be affected, including diagnostic and benchmarking applications and certain gaming applications.

Resolution: This issue has been resolved in KB5006746

Affected platforms:
  • Client: Windows 11, version 21H2

Compatibility issues with Intel “Killer” and "SmartByte" networking software

StatusOriginating updateHistory
Resolved KB5006674N/A

Resolved: 2021-10-12, 10:00 PT
Opened: 2021-10-04, 12:23 PT
Compatibility issues have been found between some Intel “Killer” and “SmartByte” networking software and Windows 11. Devices with the affected software might drop User Datagram Protocol (UDP) packets under certain conditions. This creates performance and other problems for protocols based on UDP. For example, some websites might load slower than others in affected devices, with videos streaming slower in certain resolutions. VPN solutions based on UDP might also be slower.

Affected platforms:
  • Client: Windows 11, version 21H2
Resolution: This issue was resolved in KB5006674.