fix(electron/windows): 🩹 prevent command LPE in the installer #1703
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This PR tries to prevent the local privilege escalation issue in Outline Client Windows installer by specifying the full path of system commands. Note that in a
.bat
file we can use%SystemRoot%
variable (typically expands to "C:\Windows"), but it is not available in the.nsh
NSIS script, therefore we need to use the NSIS defined constant$SYSDIR
(typically expands to "C:\Windows\System32").I also removed the Cygwin related information from the document because it is not required any more.
Fixes: b/266050099