[megaloman]

Немного подумал и подсократил

Код:

@Echo Off
cls
	Set "DelFile=*.txt"
	Set "BoxIn=C:\Users"
	For /f "tokens=1,2* delims= " %%i In ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList" /S') Do (
		If /I "%%i"=="ProfileImagePath" If /I "%%~dpk"=="%BoxIn%\" Echo === %%k &Dir /A:-D /B "%%k\%DelFile%"
	)
pause
GoTo :Eof

Dir /A:-D /B --> Del

Может еще подумать?

После поста alpap

Код:

@Echo Off
cls
	Set "DelFile=*.txt"
	Set "BoxIn=C:\Users"
	For /f "tokens=3 delims= " %%i In ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList" /S /V ProfileImagePath') Do (
		If /I "%%~dpi"=="%BoxIn%\" Echo === %%i &Dir /A:-D /B "%%i\%DelFile%"
	)
pause
GoTo :Eof