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This can also circumvent the issue: "Something happened, Windows 10 installation has failed" while upgrading.
with thanks to daz blinky yen @mdl
Preconditions:
A. You have W7 SP1/8.1 activated successfully. This actually doesn't apply to VL Volume_licenses no KMS (loader yes, pre-installations yes, OEM_DM for w8.1 yes, OEM system builder yes, retail yes), since they are officially not upgradeable.
B. Download your original w10 ISO which is suitable for the upgrade path. I.E. W7(SP1) Ultimate upgrades to w10 pro.
Follow these steps closely:
1. Validate your w7 SP1 (W8.1) online, best using IE.
2. Generate a genuine ticket of your installation by:
2.1 Copy gatherosstate.exe from your downloaded Windows 10 10240 ISO to your installation which should be upgraded.
2.2 Run it on your activated and validated Windows. It'll output GenuineTicket.xml. Save this on a USB thumb drive or something.
2.3 Then do a fresh install with your suitable w10 ISO, skip to enter key at setup procedure.
2.4 Once it's installed make sure your internet connection is DISABLED/do not enable the internet connection!
2.5. Copy GenuineTicket.xml to C:\programdata\microsoft\windows\clipsvc\genuineticket\ of your w10 installation.
2.6. Reboot w10 and connect online, it should activate.
I just summarized this. yen
This method does NOT require the annoying upgrade process itself and avoids issues!
When doing another clean install in the future just install w10 again while being ONLINE. It activates again. Thanks to Blinky for testing it.
with thanks to daz blinky yen @mdl
Preconditions:
A. You have W7 SP1/8.1 activated successfully. This actually doesn't apply to VL Volume_licenses no KMS (loader yes, pre-installations yes, OEM_DM for w8.1 yes, OEM system builder yes, retail yes), since they are officially not upgradeable.
B. Download your original w10 ISO which is suitable for the upgrade path. I.E. W7(SP1) Ultimate upgrades to w10 pro.
Follow these steps closely:
1. Validate your w7 SP1 (W8.1) online, best using IE.
2. Generate a genuine ticket of your installation by:
2.1 Copy gatherosstate.exe from your downloaded Windows 10 10240 ISO to your installation which should be upgraded.
2.2 Run it on your activated and validated Windows. It'll output GenuineTicket.xml. Save this on a USB thumb drive or something.
2.3 Then do a fresh install with your suitable w10 ISO, skip to enter key at setup procedure.
2.4 Once it's installed make sure your internet connection is DISABLED/do not enable the internet connection!
2.5. Copy GenuineTicket.xml to C:\programdata\microsoft\windows\clipsvc\genuineticket\ of your w10 installation.
2.6. Reboot w10 and connect online, it should activate.
I just summarized this. yen
This method does NOT require the annoying upgrade process itself and avoids issues!
When doing another clean install in the future just install w10 again while being ONLINE. It activates again. Thanks to Blinky for testing it.
