All a user needs to do is to *disable the security boot* option from the boot setting (if it has not been disabled by the OEMs). Well ... and it won't be the 'end day for Linux'.
In a pre-installed Windows PC, if a user wants to install another OS, he/she has to change the boot settings for the first boot device. In general case for a Ubuntu/Linux users, that would be the CD/DVD drive or the USB storage. If the Secured Booting is enable, the user still needs to access the boot setting for the necessary changes. So an Ubuntu/Linux user/enthusiast has to access the boot setting *any how* for the first time Ubuntu/Linux installation. but not sure about the Wubi installation. So *technically* I don't see any big issue with this change. But *morally* or *philosophically*, well ... it varies person to person. -- M. Adnan Quaium | https://wiki.ubuntu.com/maqtanim -- Ubuntu Bangladesh https://lists.ubuntu.com/mailman/listinfo/ubuntu-bd
