As for the actual install of windows 8.1, it will take about an hour to an hour and 30 mins. However the approximation can be shortened depending on your hard disk write and read speeds/type of main strage (SSD) and the processor.How do you open Windows 8?
To open a program in Windows 8, move the mouse cursor all the way to the top right corner of the screen. A menu will appear on the right side. Click the magnifying glass and you will see a list of all of the programs installed on your Windows 8 computer.