0xc1900101 is a Windows Update Error typically caused by the presence of anincompatible driver. It’s best to resolve this issue quickly as this incompatible driver can lead to a lot of problems down the road such as blue screen of deaths (BSODs), random crashes, file corruption, and so on.

The way to fix the 0xc1900101 error is by updating your drivers and removing any unnecessary devices/drivers. In more specific cases, updating your BIOS and adjusting some settings can also be of help.

But before that, it’s best to get the minor things out of the way first. Restart your PC, ensure yourinternet connectionisn’t interfering with the update, and check for updates multiple times.

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Delete Update Download Cache

Deleting the update download cache will force Windows to download the update files again, replacing any corrupt or missing files in the process. We have a comprehensive article withboth GUI/CLI approaches, but here are the main steps:

Uninstall Antivirus Applications

Third-Partyantivirusescan sometimes interfere with normal Windows functionality such as Windows Update, mostly due to false alerts. In such cases, it’s best to uninstall, or at least temporarily disable such programs. The steps to do so are listed below:

you may always reinstall your antivirus later, but if you’d really rather not remove it, temporarily disabling it is also an option. Here are the steps to do so:

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When starting the upgrade process, you may choose to download and install updates immediately or get them later via Windows Update. Microsoft recommends selecting theDownload and install updates (recommended)option.

Disconnect All Peripheral Devices

Aside from your mouse, keyboard, and monitor, disconnect all other peripheral devices that are connected to the system (speakers, webcams, external storage drives, etc.). Try updating once that’s done and verify if you still receive the 0xc1900101 error.

Remove All Unused SATA Devices

In this case, you should disconnect allunnecessarySATA devices(hard drives, optical drives, SSDs). But in addition to this, you should also uninstall them via the Device Manager. you may do so with the following steps:

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Remove All Unused Devices and Drivers

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