The goal/scenario is as follows: -Installing windows 8.1 Enterprise, and right after the OS install to make a MS Office Install and less updates after the install. Explanation: I have 2 .iso for Windows 8.1 PRO. One is just fresh downloaded from MS website and one is older from MDSN but the older one has "roll-up-1". ...However, when I install the OLDER PRO, MS will throw a lot of updates which require DAYS to fully update, and if I do not update MS Office Will NOT work on it. ...If I install windows from the NEW PRO iso, then the MS Office will work - with or whitout updates, and when I will update the system, the time required for updates and the number of the updates will be smaller. I wish to install the Enterprise version of Windows 8.1, and then to be able to install MS. Office directly without the need to wait, literally days for the updates to finish. Is there a link to the LATEST ORIGINAL 8.1 MDSN/techbench Windows 8.1 Enterprise version which includes all updates from 2017 and the MS office install will work right after the operating system is installed? Or, can be 8.1 PRO upgraded somehow to Enterprise by changing the license key like on Windows 10? Thank you in advance, Cheers guys!!