Hi. Owner of win7 home professional here. I like many other tried to download and install the update/upgrade for win 10. The download went fine and I only need to applicate the files (the phase where it says "notice your pc may need to restart several times..."). I've tried 3 times now, and it is always around the 15-16% that I get this error. 0xC1900101- 0x2000D The message is in Danish. Saying: We have reverted the PC back to the state it was prior to the attempt of installation. "The installation failed in the process SAFE_OS with a failure/obstacle during MIGRATE_DATA" What can I do to solve this?