Security News > 2021 > October > Microsoft finds Windows 11 issues with SmartByte networking software
Microsoft says Windows 11 customers might experience networking speed issues if Dell's SmartByte software runs on their devices.
Microsoft has now also found compatibility issues between the SmartByte networking software and Windows 11, version 21H2, that could lead to slower than expected Internet speeds on impacted devices.
Due to compatibility issues with the Oracle VirtualBox virtualization software, customers might be unable to start their Virtual machines and might receive an error on the latest Windows 11 release, according to Microsoft.
Microsoft applied a compatibility hold to safeguard the users' experience by automatically blocking affected devices from being offered or installing Windows 11 and is working on finding a solution for these Windows 11 known issues, with an update addressing them to be released with the October Patch Tuesday.
Microsoft released Windows 11 worldwide on Monday and is rolling it out via Windows Update to new Windows 10 devices and those pre-loaded with Windows 11.
Windows 10 users can upgrade to Windows 11 via Windows Update as long as they come with compatible hardware.
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