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Windows 11 known issues and notifications
Find information on known issues and the status of the rollout for Windows 11. Looking for a specific issue? Press CTRL + F (or Command + F if you are using a Mac) and enter your search term(s). Want the latest Windows release health updates? Follow @WindowsUpdate on Twitter.
Current status as of October 4, 2021 (PT)
Windows 11 is available for new devices pre-loaded with Windows 11, and eligible new Windows 10 devices.
The Windows 11 upgrade will be offered using a phased rollout which targets eligible new devices first. Availability will be increased over time.
If you are using Windows 10, you can determine if your device is eligible for the upgrade using the PC Health Check app or checking Windows 11 specs, features, and computer requirements. If you have an eligible device, open Windows Update Settings and select Check for updates. Once the upgrade is ready for your device, you will see the option to download and install.
We expect all eligible Windows 10 devices to be offered the upgrade by mid-2022.
For more information on the Windows 11 upgrade experience, watch this video.
- How to get Windows 11
Explore the upgrade experience.
Known issues
This table offers a summary of current active issues and those issues that have been resolved in the last 30 days.
| Summary | Originating update | Status | Last updated |
|---|---|---|---|
| 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 |
| Compatibility issues have been found between Oracle VirtualBox and Windows 11 You might be unable to start Virtual machines (VMs) and you might receive an error. | N/A | Confirmed | 2021-10-06 17:26 PT |
Issue details
October 2021
Installation of printers might fail when attempted over some network connections | ||
| Status | Originating update | History | Resolved KB5006746 | N/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:
| ||
Custom printing properties might not be correctly provided to print server clients | ||
| Status | Originating update | History | Resolved KB5006746 | N/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:
| ||
Installation of printers via Internet Printing Protocol (IPP) might not succeed | ||
| Status | Originating update | History | Resolved KB5006746 | N/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:
| ||
Receiving a prompt for administrative credentials every time you attempt to print | ||
| Status | Originating update | History | Resolved KB5006746 | N/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:
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 | ||
| Status | Originating update | History | Resolved KB5006746 | N/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:
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 | ||
| Status | Originating update | History | Resolved KB5006746 | N/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:
| ||
Compatibility issues with Intel “Killer” and "SmartByte" networking software | ||
| Status | Originating update | History | Resolved KB5006674 | N/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:
Resolution: This issue was resolved in KB5006674. | ||
Compatibility issues have been found between Oracle VirtualBox and Windows 11 | ||
| Status | Originating update | History | Confirmed | N/A | Last updated: 2021-10-06, 17:26 PT Opened: 2021-10-04, 12:18 PT |
Microsoft and Oracle have found a compatibility issue between VirtualBox and Windows 11, when Hyper-V or Windows Hypervisor is installed. You might be unable to start Virtual machines (VMs) and you might receive an error. 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 is 35004082. Workaround: To mitigate the safeguard, you will need to remove Hyper-V or Windows Hypervisor until this issue is resolved with an update Oracle plans to release in October 2021. You can check Oracle's progress by monitoring their ticket #20536. If you are no longer using VirtualBox, uninstalling it should also mitigate the safeguard. Please note, if there are no other safeguards that affect your device, it can take up to 48 hours before the upgrade to Windows 11 is offered. Affected platforms:
Next steps: Oracle is working on a resolution and is estimated to release a compatible version of VirtualBox in October 2021. Note We recommend that you do not attempt to manually upgrade using the Update now button or the Media Creation Tool until this issue has been resolved. If you are trying to upgrade to Windows 11, you might encounter an upgrade compatibility hold and receive the message, "VirtualBox. Your PC requires the latest version of this app. Click Learn More for more information on how to update this app.” | ||