Issue: How to Fix Windows 10 Installation / Upgrade Error 0xC1900101 – 0x20017?
When I try to install Windows 10 to my Windows 8.1 laptop, I’m not allowed to do so due to the 0xC1900101 – 0x20017 error. It shows each time in a blue screen environment and says “We couldn’t install Windows 10. We’ve set your PC back to the way it was right before you started installing Windows 10.” At the end of this screen, the error code is given and no further explanations of what should I do or what is the core of this problem. Could you please help me?
Windows Error Code 0xC1900101 – 0x20017 comes during the upgrade or literal install of Windows 10. The message shows up when the installation completely fails and the user is left without any proper explanation, in most cases. even the “The installation failed in the SAFE_OS phase with an error during BOOT operation” statement says nothing, so there are not many solutions to this issue.
0xC1900101 – 0x20017 is also called Windows 10 installation error and is similar to 0xc1900101-0x30018. These two error codes may show up interchangeably, so it’s assumed that the reason for them is the same. In the majority of the cases, 0xC1900101 – 0x20017 BSOD occurs on the systems when a PC owner either attempts to upgrade the current Windows 10 version to the new one or install the Windows 10 entirely on the older version of Windows.
The vast majority of people who have encountered it, were trying to install Windows 10 Anniversary Update. The most irritating thing is that the update reaches 99%, but then freezes and throws 0xC1900101 – 0x20017 error. Nevertheless, according to the Windows experts who have been investigating this issue in great detail, this problem appears on freshly installed Windows OS as well.
The message itself is not very informative. It simply declares that the installation process could not be executed and that it has “failed in the SAFE_OS phase” Unexperienced users probably do not understand a word in this message and have no idea what fixes should be performed to work around it. This is why we have a few solutions for you below.
How to fix 0xC1900101 – 0x20017 Windows 10 error
Luckily, we can calm you down. Windows installation error 0xC1900101 – 0x20017 is not that serious as it may occur at first. This is not a malware issue or a crucial problem. The majority of people who have encountered it managed to fix it manually without any difficulties. While its causes are not precisely clear, its emergence means that due to some system failure Windows cannot access required information related to system files, registries or similar. Therefore, before you start the installation or upgrade, run a scan with Reimage in order to fix issues persisting in the current Windows version, If that did not help, try one of the following fixes.
Create a Windows restore point
- Hold Windows key and R together on the keyboard.
- Then type the following in the dialog box:
- Then click Create and specify the name of the restore point.
- Click OK and confirm the creation.
Disable wireless from BIOS
- Restart the computer.
- During the boot press F2 and Del constantly to enter the BIOS.
- Go to the Advanced tab once that is done.
- Navigate to Wireless option and press Enter to open it.
- Once two Internal Bluetooth and Internal WLAN options appear, disable both.
- Press Esc and go back to the main screen to save changes.
Update or Reinstall drivers
- Press Win key and type Device Manager.
- Click on the search results and look for the malfunctioning drivers. They should be labeled with a yellow exclamation mark, so go through the list of devices on the left pane and check each of them.
- If any driver/device is running improperly, right-click on it and select Properties.
- After that, select Drivers and click on Update Drivers option.
- Finally, reboot the system.
Uninstall Broadcom Bluetooth and Wireless drivers
If you are running Windows 7 or 8.1 OS, the culprit may be Broadcom Bluetooth and Wireless drivers, so to fix 0xC1900101 – 0x20017 error you should try uninstalling them both. For that, perform these steps:
- Go to Start and type Device Manager in the search box.
- Click on the search results and find Bluetooth driver.
- Right-click on it and select Uninstall.
- After that, find a Wireless Network driver, right-click on it, and select Uninstall.
- Finally, reboot the system and try to install the update.
Reset Windows Update components
- Click Win key + X and select Command Prompt (Admin).
- Disable BITS, Cryptographic, MSI Installer, and the Windows Update Services. In order to do so, type the following commands in the Command Prompt and hit Enter after each of them: net stop wuauserv, net stop cryptSvc, net stop bits and net stop msiserver.
- After that, type these commands to rename SoftwareDistribution and Catroot2 folders. Don’t forget to type Enter after each of them: ren C:\\Windows\\SoftwareDistribution SoftwareDistribution.old and ren C:\\Windows\\System32\\catroot2 Catroot2.old
- Once done, enable BITS, Cryptographic, MSI Installer, and the Windows Update Services. This can be done by typing the following commands followed by Enter: net start wuauserv, net start cryptSvc, net start bits, and net start msiserver.
- Finally, close Command Prompt window and reboot your PC.
If none of these fixes helped, then you should also try to disable your antivirus or install the update manually using a Media Creation Tool.
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