

If I take the offline upgrade route is all I need a Windows 10 iso? I would need a backup plan if something went wrong with the upgrade process. if I am not sure if my license keys for an old Office 2007 would still work though. I guess I would not need a license key for this as activation says 'Windows is activated with a digital license'. The other option is to copy the data, reformat the disk and clean install Windows 10. This situation causes a conflict between Windows and SEP firewall rules and results in unexpected application blocks. My main internet security software is Kaspersky Internet Security. Endpoint Protection Issue/Introduction Symantec Endpoint Protection (SEP) doesn't manage the Windows Firewall settings in Windows 10 Fall Creators Update (version 1709). I normally scan data on another online computer before copying it into the offline one, which is a pain in the neck, but there is now no way to know if this laptop is 100% malware free, unless of course there is an offline way to check this through a security scan. I would also as a one off process wish to scan the entire HDD for malware. I have also been thinking of possibly completely removing the data and copying it to an external drive and then doing the updates rather than doing an offline update. I have a Windows account on this computer and not a Microsoft account. Since the system account has access to recovery keys, it could unlock the partitions at any time if MS were to get your BL partition.Many thanks for your helpful advice.

Any windows update as well as feature upgrade (as in 1709->21H1) is possible offline. They were allowed to update themselves at any time and query their in-the-cloud services. We always used the most current publicly-available version of all products for the testing. If you fear that the windows upgrade process is malicious, you shouldn't use windows or at least do all updates offline. During September and October 2017 we continuously evaluated 14 endpoint protection products using settings as provided by the vendor.
