Security News > 2020 > October > Microsoft fixes known issue blocking Windows 10 upgrades
Microsoft has resolved a known issue that was blocking customers from upgrading some devices running Windows 10 1903 and 1909 to newer OS versions.
The issue was first acknowledged one month after the release of the KB4577062 Windows 10 optional update for versions 1903 and 1909 on September 16.
Microsoft now says that the Windows 10 upgrade issue was resolved with the 'Setup Dynamic Update for Windows 10, version 1903 and 1909' update published on October 13, according to new info added to the Windows Health dashboard [1, 2] and the knowledgebase.
Customers who cannot immediately apply this update are advised by Microsoft to work around this known issue by re-enabling HTTP access to the Internet to the Windows 10 Setup Dynamic Update.
"If your device has access to HTTP blocked for LOCAL SYSTEM accounts, to mitigate this issue you can enable HTTP access for the Windows 10 Setup Dynamic Update using the LOCAL SYSTEM account," Microsoft says.
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