Windows 10 Update Failed Error C1900101, how can I fix it?

[Hong Yun-seong]

Windows 10 Update Failed Error C1900101

I have an HP Pavilion dv6 running Windows 7 Home. I decided to update to Windows 10. Download was successful, it attempted to install the update I guess, was on the settings part. It got stuck though on a blank screen with just a cursor for two hours so I turned off my laptop. Then it restored Windows 7, and now it's redownloading the Windows 10 update again. Thing is, I got an issue with my laptop. Whenever it boots up, I get an error message about the fan not working properly and I have to hit enter for it to continue with the restart otherwise it will power off. Could that have affected the update to Windows 10?

 

[JELG6]

Re: Windows 10 Update Failed Error C1900101

I get this exact same error. I have the same laptop too. This is really pissing me off. I was so excited to upgrade.

 

[Erik Wagemaker]

Re: Windows 10 Update Failed Error C1900101

I have the same problem with HP Pavilion dv6. After downloading the install procedure starts but after selecting the keybord layout the procedure stops and wants to go back to Windows7. My Laptop is FDE protected with Truecrypt.

 

[Hong Yun-seong]

Re: Windows 10 Update Failed Error C1900101

I really wish this was a smooth process! Now I'm just not interested with it anymore. I have attempted to do the update for the third time - and guess what? Yeah it failed again.

 

[Hong Yun-seong]

Re: Windows 10 Update Failed Error C1900101

Guys please let me know if you had any luck on your end....

 

[NickDoesGucci]

Re: Windows 10 Update Failed Error C1900101

I don't have that laptop, but I've gotten the same error. So frustrating!

 

[Dee WB]

Re: Windows 10 Update Failed Error C1900101

I am having the same problem installs files and then reverts back to previous Windows version....tried three times have given up any help please...Error 1900101-30018

 

[cygnus11]

Re: Windows 10 Update Failed Error C1900101

Had this error on my son's computer. I ended up just doing a complete clean install of Windows 8.1 from the DVD and as soon as the install was complete, I was prompted if I wanted to upgrade to Windows 10. It was crazy - like it was built into the 8.1 install process. Kinda cool actually.

So I just agreed to upgrade and the upgrade process was quick and very clean. No errors.

I know this isn't an option for everyone, but if it is, I highly recommend it. Sure, you have to backup all your data and be prepared to re-install your apps. But afterwards you have a very clean Windows 10 install. The whole process including putting apps and data back on was about an hour.

 

[Gerald de la Cruz]

Re: Windows 10 Update Failed Error C1900101

It has something to do with you computer's security, if you are using 3rd party anti virus like Norton, it will block the changes, so better to turn it off or disable it permanently then rein-able it after the installation is complete.

 

[Kurt Barlow]

Re: Windows 10 Update Failed Error C1900101

I am presently only using Windows Defender and I keep getting the same error.

 

[Cleon42]

Re: Windows 10 Update Failed Error C1900101

Dell Inspiron 7737 here, same issue. I removed all AV and GEForce software (it's given me issues before), but I still get the same result. It downloads Windows 10, gets part of the way through the process, and becomes unresponsive with a blank screen. I reboot, and it restores Win 8.1. Windows Update tells me that it's failed with the error code C1900101-40017.

 

[Ancistrus01]

Re: Windows 10 Update Failed Error C1900101

You are lucky that it restore your Win 8.1 back. I ended up with blue screen and "computer has to be repaired". Great.

 

[jlzimmerman]

Re: Windows 10 Update Failed Error C1900101

I got the C1900101 - 0x20004 error when I woke up this morning. I'll have to mess with when I get more time over the weekend.

 

[GrayW0lf]

Re: Windows 10 Update Failed Error C1900101

You can try using the Disk Cleanup tool - after it launches, click on "Clean up system files". Once the analysis is complete, scroll down to "Temporary Windows Installation Files" (or some combination of words to that effect) - check that box and run the clean up. You can then run "wuauclt /updatenow" at an Administrator command prompt. This should resolve the "SafeOS" problem you listed.

 

[DarkVizard238]

Re: Windows 10 Update Failed Error C1900101

This solution worked for me: Try Convert dynamic discs to basic disks because windows cannot create a recovery partition on dynamic disk.

 

[Colin G1]

Re: Windows 10 Update Failed Error C1900101

Yet another HP Pavilion dv6 with exactly the same problem. Co-incidence? I doubt it.

 

[adrianoviz]

Re: Windows 10 Update Failed Error C1900101

Same problem here!!

 

[Bluerain]

Re: Windows 10 Update Failed Error C1900101

I had to do it 3 x before it would take.

Second time I shut down virus software and unplugged all usb ports and still wouldn't upgrade. 3rd time I ran defrag before upgrading the 3rd time ( i read online somewhere to try this) and it worked like a charm.

i also ran a disk check upon booting before the defrag. These 2 things took a while but
it seem to work for me.

Just be sure to also shut down any virus program and to unplug any USB devices.

 

[neptel]

Re: Windows 10 Update Failed Error C1900101

Same issue on HP Pavilion g6
A complete waste of time - 3 abortive attempts to install.
Too long a process - may come back to Windows 10 when it's sorted, for now more to do than waste further time.

 

[jlzimmerman]

Re: Windows 10 Update Failed Error C1900101

You can try using the Disk Cleanup tool - after it launches, click on "Clean up system files". Once the analysis is complete, scroll down to "Temporary Windows Installation Files" (or some combination of words to that effect) - check that box and run the clean up. You can then run "wuauclt /updatenow" at an Administrator command prompt. This should resolve the "SafeOS" problem you listed.

I tried this, it didn't work. There are no other patches/fixes that need to be installed from Windows Update. I also disabled my antivirus and cleaned out old files, temp directories, and any suspect programs that may cause problems with compatibility.

The install from the download tool gets to "Copying Files 85%" (25% of the total install) then the laptop just reboots and Windows restores back to Windows 7. The error is one from my post mentioned above. The odd thing is that if attempt the install from Windows Update, it also fails, but leaving error message 80240020. The 80240020 error might be MS's default error when prompting to install W10 before the system says it's actually "ready." I'll keep trying and find out what works....