HKLM,Software\Microsoft\Windows\CurrentVersion\Uninstall\LAGARITH,UninstallString,,"rundll.exe setupx.dll,InstallHinfSection DefaultUninstall 132 %17%\LAGARITH.INF"


↑ の行を、↓ のように書き換える。

HKLM,Software\Microsoft\Windows\CurrentVersion\Uninstall\LAGARITH,UninstallString,,"rundll32.exe setupapi,InstallHinfSection DefaultUninstall 132 %17%\LAGARITH.INF"