WDS Error : windows cannot install required files

I tried to install new computer from an image from a WDS server.

The new computer connected to the WDS server, I choose the installation image that I wanted.  However during the expansion part of the process I was presented with the error “windows cannot install required files error …….. Error code 0x80070040”.

The reason for that is probably the Res.RWM may have become corrupt.

The file Res.RWM is located on every imagegroup at RemoteInstall\Images\ImageGroupName and it’s like an index file of all images that were published on the WDS.

To solve this you can delete and recreate the Image Group.

Before you do that you can back up the original wim files from this group so you can use it after in the new Image Group that you will create.

1. Back up the original wim files from this group:
   1. Back up Open the WDS server.
   2. Expend the Install Images Folder.
   3. Click on the Image Group that has the error.
   4. Right click the image that you want to back up.
   5. Click on export image.
   6. Choose a file name and location whare you want to save the back up.
   7. Export the file.
2. Delete the error image group:
   1. Right click the image group.
   2. Click delete.
3. Create new image group:
   1. Right click Install Images folder.
   2. Click add image Group.
   3. Add a new group.
4. Add the backed up images to the new image group.
   1. Right click the new group.
   2. Click add install image.
   3. Choose the backed up image that you want.
   4. Add it to the group.
5. finish

Sources:

http://robbieroberts.wordpress.com/2012/03/14/wds-windows-cannot-install-required-files/

http://front-slash.blogspot.co.il/2010/08/wds-error-windows-cannot-install.html