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Windows 7: "sfc /scannow" an offline Win7 on hard disk from booted Win10 ?

02 Aug 2017   #1

win7pro 64bit
"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?


My System SpecsSystem Spec
02 Aug 2017   #2

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring

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)

My System SpecsSystem Spec
04 Aug 2017   #3

win7pro 64bit

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
My System SpecsSystem Spec


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

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