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Win10 upgrade stops at 24% fails with 0xc0000f
Upgrade of Win7 HP laptop -- not usual failure code. Upgrade done through Windows Update (copy was reserved). Gets to 24%, restarts, bring up Recovery screen, fails with 0xc0000f -- a required device isn't connected.
Only one physical drive in the laptop -- works fine under Win7.
Have seen threads about problems with System Reserved being too small for Win10 (200MB for Win7 vs. 450MB for Win8). Tried shrinking C: and resizing System Reserved.
Repeats above problems -- plus, leaves laptop in weird mode with Win10 partially installed, a new Recovery partition, and nothing working (meaning, Win7 won't boot anymore).
Am now trying option of installing from DVD, after merging boot stuff into C: partition and removing System Reserved -- figuring that if Win10 requires a System Reserved partition, it knows how to create one the right size.
Anyone else run into this? Anyone know how to work around this problem? Please don't suggest a wipe and new install -- I've got too much on this laptop to spend hours hunting down CDs and product codes to have to reinstall everything from scratch.