@MayAnnTenorio Support for a specific versions of WIndows is provided by the Pega Native Foundation. The highest version of Windows supported by a version of PNF is determined by the 4th octet. The current release of PNF is Version 10.1.22.2004 which means that Windows 10 2004 is supported. I have been told that this release of PNF has since been tested with Windows 10 20H2 and does indeed support Windows 10 20H2. Support for Windows 10 21H1 is being validated - check for new releases of PNF to see when support is available.