In my new Acer Aspire 5742G, All values in the latest BIOS (1.10) seem to be good except that for me, UEFI boot is not working. In addition, VSS does not seem to stick to modding unless you change the value in both the configuration and custom variable, so I just did this with a hex editor (ACER checksums do not have to compress volumes VSS). However, this requires a bios dump for each laptop, and that to be changed. Instead, I like to modify the SetupUtility PE (well, actually the bytecode UEFI HII forms within its data section). This gives the option to unlock (alone changes the curb If some dummy variables to test for some false values).
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