Don't require admin privileges for install.bat

[Rangi42]

https://discord.com/channels/442462691542695948/649012382575886376/1143235536002232451:

• install.bat
• uninstall.bat
• uninstall_legacy.bat

[SatoMew]

install.bat also currently relies on VBScript, which is now deprecated and an optional Windows feature that may not be present in a user's system.

Relevant documentation:
https://techcommunity.microsoft.com/t5/windows-it-pro-blog/vbscript-deprecation-timelines-and-next-steps/ba-p/4148301
https://learn.microsoft.com/windows/whats-new/deprecated-features-resources#vbscript