A very basic built-in PDF reader was introduced in this build. This was a significant addition, as previous versions of Windows required third-party software like Adobe Acrobat Reader to open PDF files.
This was a pre-release build and should not be used for daily work. download link windows 8 build 7850 iso
Like all pre-release Windows software, Build 7850 contains an embedded hardcoded expiration date, commonly referred to as a "timebomb." Because the current date is past this expiration limit, attempting to boot the ISO directly will result in an immediate setup failure or an immediate Blue Screen of Death (BSOD) reading END_OF_EVALUATION_PERIOD . To bypass this restriction: A very basic built-in PDF reader was introduced
An early, unstable version of the Ribbon interface is embedded within Windows Explorer, predicting the layout used in the retail version of Windows 8. Like all pre-release Windows software, Build 7850 contains
Boot the VM. The installation wizard will mirror the Windows 7 setup screen. Follow the prompts to format your virtual drive and install the OS.
Attach the verified Build 7850 ISO file to the virtual machine’s optical drive.