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0xC1900101 – 0x20004 Install Error: 3 Ways to Fix it

Detach all the unused SATA devices to resolve this error

5 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Theerror code 0xC1900101– 0x20004 is commonly encountered during the installation or upgrade of the Windows operating system. Several users have shared their experiences of getting stuck at 25% while installing their Windows PC update.

In this article, we will discuss the causes and provide efficient solutions to rectify them promptly.

What causes the 0xC1900101 – 0x20004 install error?

What causes the 0xC1900101 – 0x20004 install error?

There can be factors leading to this error. The following are a few common causes:

Now that you know some of the potential reasons behind the 0xC1900101 – 0x20004 install error, let’s now proceed to how to resolve the error.

How can I fix the 0xC1900101 – 0x20004 install error?

How can I fix the 0xC1900101 – 0x20004 install error?

Before attempting any of the advanced solutions outlined in this guide, it could prove beneficial to start with the following initial checks:

Once you have completed the checks above, you can utilize any of the methods outlined below if you need additional support.

1. Remove all unused SATA devices

Removing the unused SATA devices has been proven by several users to have fixed the 0xC1900101 – 0x20004 install error. After removing the SATA cables, try the installation again.

Alternatively, if yourSATA controllers do not support the AHCI mode, try to exchange the SATA drivers.

2. Disable the WLAN chip

Some users claimeddisabling the network adaptersworked for them, hopefully, the error should be fixed by now.

3. Update BIOS through Windows

4. Reset BIOS

It is important to note thatresetting the BIOSwill revert any custom settings made, so you may need to reconfigure any preferences or parameters you previously set.

And that’s it on how to fix the 0xC1900101 – 0x20004 install error. The methods provided in this guide have worked for others. Hopefully, you should be able to resolve the error too.

Some other users have reported similar issues, such asWindows 11 0xC1900101 (We couldn’t install Windows),0xC1900101 – 0x30018 install error, etc.

If you have any questions or suggestions, do not hesitate to use the comments section below.

More about the topics:installation error

Loredana Harsana

Windows Software Expert

Loredana is a passionate writer with a keen interest in PC software and technology. She started off writing about mobile phones back when Samsung Galaxy S II was on top of the world and she fell in love with tech of all sorts.

Whenever she’s not at her work desk, you’ll find her enjoying refreshing tea flavors, spilling stories on paper, and listening to the radio.

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Loredana Harsana

Windows Software Expert

Loredana is a tech enthusiast who tackles mobility, privacy, and networking in easy-to follow guides for everyone.