"sfc /scannow" an offline Win7 on hard disk from booted Win10 ?

Assume a hard disk contains a possibly (partially) corrupted Windows 7.

I boot now a ToolsCD or USB flash drive with Windows 10.

When I open now a CmdPrompt and enter

sfc /scannow /offwindir=C:\Windows /offbootdir=C:\

then I cannot do this since the local, active, running WinOS is different from the investigated one.

Is there a workaround for that?

I can imagine that I can somehow put a windows 7.iso file onto the ToolsCD/USB flash drive and tell the "sfc" command to look
for the corresponding files inside this archive. Something like this:

sfc /scannow /offwindir=C:\Windows /offbootdir=C:\ /usewinosfilesfrom=X:\windows7.iso

Is this possible?

Peter

Hi Peter,

Assuming its the correct directory (C)
(unlikely as your W10 will occupy it, more likely D)


sfc /scannow /offbootdir=C:\ /offwindir=C:\windows

(additional \ and windows)


Roy

Hi Roy,

your command is the same as mine just with switch parameter sequence.
Since the order of parameters does not matter its the same command