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Windows 10 upgrade fails with 0xC1900101-0x40017

Windows 10 is great, it really is. It is a much better OS than Window 8 or 8.1. Take advantage of the free upgrade while you can.

That said, there are sometimes issues with the upgrade. I am seeing most issues with the upgrade process when a machine has been in use for a long time but there are some machines that wont even upgrade after a complete fresh build.

A web search for the 0xC1900101-0x40017 error brings up lots of issues, lots of people see this problem but the solutions are a bit hit and miss. I saw this issue with an HP Elitebook 840 G1 that was 12m old. Rather than upgrade in place, I decided to upgrade the SSD first then install fresh from the HP OEM 8.1 disc then upgrade to Windows 10. This failed every time with the 0xC1900101-0x40017 error. I tried secure boot on and off, legacy boot, UEFI with and without CSM, upgrading from Disc, upgrading from USB, upgrading from mounted ISO and via Windows update as well as BIOS updates but the upgrade to Windows 10 failed every time.

I decided it was a driver error so upgraded all the drivers before the upgrade, still no go. sfc /scannow was run and found no issues (fresh install on new SSD). About to give up, I thought I would try to install the Windows 10 drivers on Windows 8.1 BEFORE trying to upgrade. I downloaded them all from HP and installed them all on Windows 8.1. THe only one that didnt like it was the Synaptics Touchpad driver, the rest installed without issue. During the Windows 10 upgrade (from a USB stick created with the Windows 10 Media Creation tool) I told it NOT to download updates before the install. I suspected that one of the updates being downloaded was a faulty driver for a device in the 840. Finally the upgrade went through and the machine activated with Windows 10. I may now go back and do a fresh install but it is clean anyway so probably wont bother. Luckily it was not a client PC, however it was my wife’s so was probably more important.

Hopefully this helps someone else with the same unbelievably frustrating issue. I literally tried over 10 times to get the upgrade to install.

Posted in: Business, Free Software

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