Well, it had to happen. Customer with a Refurbished laptop with Win7 Pro got himself upgraded to Win10 and three months later decided he didn't like it. Wanted me to fix, no backups of course! Win10 has broken the ability to boot to the recovery partition, but the Install.wim is still there. I'll use that and apply it to Windows partition and:
Tried Hiren's and Gimagex. No joy, "The supplied user buffer is not valid for the requested operation." Finally bailed on that one.
Tried a WinPE disk and DISM. No joy.
Tried mounting Install.wim in Gimagex and figured I'd make a Macrium image of it for future use, Macrium BSOD's.
Looking through the web, articles on how to do with with OEM recovery partitions and a Tools folder that doesn't exist on refurb installs.
After running into a number of dead ends, I recalled that 7zip File Manager in Hiren's was able to see inside the Install.wim. I launch it, go to 2 pane view and let it load the wim, format the Windows partition then copy the contents of the Install.wim to it.
Restarted on a Win7 Pro DVD and let Startup Repair fix the boot files, restart again and we have OOBE. I go through the usual stuff and get to a Win7 desktop. Now, I'm figuring that this is a somewhat screwed up installation, so I restart and tap the spacebar to get into the Boot Manager, then F8 for the Advanced Options, where "Repair Your Computer" is available, which happily invokes the Restore Partition in the intended manner. A little more time with OOBE and it's a Win7 Pro laptop again, eagerly taking forever to install the March update client.
Stick that in your "User Buffer", ya intransigent sack of syntax!
Tried Hiren's and Gimagex. No joy, "The supplied user buffer is not valid for the requested operation." Finally bailed on that one.
Tried a WinPE disk and DISM. No joy.
Tried mounting Install.wim in Gimagex and figured I'd make a Macrium image of it for future use, Macrium BSOD's.
Looking through the web, articles on how to do with with OEM recovery partitions and a Tools folder that doesn't exist on refurb installs.
After running into a number of dead ends, I recalled that 7zip File Manager in Hiren's was able to see inside the Install.wim. I launch it, go to 2 pane view and let it load the wim, format the Windows partition then copy the contents of the Install.wim to it.
Restarted on a Win7 Pro DVD and let Startup Repair fix the boot files, restart again and we have OOBE. I go through the usual stuff and get to a Win7 desktop. Now, I'm figuring that this is a somewhat screwed up installation, so I restart and tap the spacebar to get into the Boot Manager, then F8 for the Advanced Options, where "Repair Your Computer" is available, which happily invokes the Restore Partition in the intended manner. A little more time with OOBE and it's a Win7 Pro laptop again, eagerly taking forever to install the March update client.
Stick that in your "User Buffer", ya intransigent sack of syntax!