Fix: Windows 10 Install Error 0xC1900101 – 0x40017

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When users attempt to run the Windows 10 Creators Update (or other major update), they receive an error 0xC1900101-0x40017 during the SECOND_BOOT phase.

Here is the error message:

The installation failed in the SECOND_BOOT phase with an error during BOOT operation.

How can I fix this error and finally install the updates?

System file checker

From the Start menu, type cmd, then right-click on it and choose Run as administrator.

In the command window, type sfc /SCANNOW, press Enter and run the program. It could take 10 to 30 minutes. For me, there was a bug that said that it had found buggy files, but that they couldn’t be fixed.

If you get errors about corrupted files, go to step 1a or try saving this file on your desktop and running it as an administrator. Once you are finished, you will have an sfcdetails.txt file on your desktop with details about the corrupted files.

DISM Command

If you receive the above error while trying to run SFC, try running it in the same command window:
Check DISM /online /cleanup-image /health
DISM /online /cleanup-image /scanhealth
DISM /online /cleanup-image /health restoration

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Try to get a clean boot


– Move the mouse over the right edge of the screen, and then press Search. Or, if you are using a mouse, point to the bottom right corner of the screen, then click on Search.
– Type msconfig in the search field, then type or click on msconfig.
– In the Services tab of the System Configuration dialog box, select the Hide all Microsoft services check box, and then tap or click Disable all.
– On the Start tab of the System Configuration dialog box, press or click Open Task Manager.
– In the Task Manager’s Start tab, select the item for each start item and click Disable.
– Close the Task Manager.
– In the Startup tab of the System Configuration dialog box, press or click OK, and then restart your computer.

Disconnect all devices from the power supply.

Some users have confirmed that they have successfully installed the Creators update after disconnecting all devices from their computer. Although this may seem like a third-class solution, you should try it because it has proven useful for some users.

Disabling the Windows firewall



Most users reported that their problem was due to the Windows firewall. It can sometimes interfere with the update process and may prevent you from doing so. In this case, you must disable the Windows firewall. Here is the procedure:

  1. Press the Windows + I button to open the settings.
  2. Search for’Firewall’ and click on Windows Defender Firewall.
  3. Click on’Enable or disable the Windows Defender firewall’ on the left side.
  4. Check the option’Disable Windows Defender Firewall’ for both settings.
  5. Click on OK.
  6. Perform the upgrade.

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