nv-items-reader-writer-tool.exe /list
test on a non-critical system first. Have a hardware SPI flash programmer (like CH341A) ready for recovery. download nv-items-reader-writer-tool.zip
and unstable mobile data connections.
Before any risky modification, professionals dump all NV items to a file. If something goes wrong, they can restore the original set. nv-items-reader-writer-tool