[Kazun]

Код:

FOR /F "tokens=*" %%D IN ('DIR /B /AD /S C:\DRV') DO PNPUTIL -i -a "%%D\*.inf"

PS > pnputil /?
Microsoft PnP Utility
Usage:
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pnputil.exe [-f | -i] [ -? | -a | -d | -e ] <INF name>
Examples:
pnputil.exe -a a:\usbcam\USBCAM.INF -> Add package specified by USBCAM.INF
pnputil.exe -a c:\drivers\*.inf -> Add all packages in c:\drivers\
pnputil.exe -i -a a:\usbcam\USBCAM.INF -> Add and install driver package
pnputil.exe -e -> Enumerate all 3rd party packages