Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: windows 7 error c1900101- 20004 trying to upgrade to windows 10

18 Aug 2015   #1

windows 7 home premium 32 bit
windows 7 error c1900101- 20004 trying to upgrade to windows 10

I am new, this is my first post. running windows 7 home premium 32 bit on hp pavilion g6. Trying to use free windows 10 upgrade from ms. worked on win 7 dell inspiron. keep getting this error on hp. any changes would need to be on pc wile its still win 7 so i posted here. anyone have this issue? any fixes?

My System SpecsSystem Spec
19 Aug 2015   #2

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

It seems that this error can have a variety of causes:
1) Insufficient disk space in the Recovery/System Reserved/Boot/SYstem drives
2) Incompatible graphics drivers
3) other.

Please post a screendump of your Disk Management window... Disk Management - Post a Screen Capture Image
My System SpecsSystem Spec
19 Aug 2015   #3

windows 7 home premium 32 bit
Problem solved

Hello Noel et al,
I ran disk clean on both the c and d drive, then ran disk compress on the d drive, then uninstalled 4-5 pcs. of software no longer being used. By freeing up disk space, and optimizing, I was able to install Windows 10 successfully. Thanks very much for the comment on recovery disk space, I believe that was my issue.
As soon as I figure out how to mark this post as solved, I will do so. Enjoy the pub.
My System SpecsSystem Spec


 windows 7 error c1900101- 20004 trying to upgrade to windows 10

Thread Tools

Similar help and support threads
Thread Forum
Right Click Error for Windows 7 Upgrade
I've recently upgraded my desktop from windows vista to windows 7(today in fact) and when it got done installing and my system re-booted, whenever i right clicked on any windows explorer related windows, or the desktop itself, It stopped responding and it had to restart windows explorer. I've...
BSOD Help and Support
BSOD since windows 7 upgrade, usually error 3B
Since I upgraded from xp to windows 7 I have been getting the BSOD. It usually happens while I am doing something graphic intense (like playing a game), but also occurs while the computer is idle. I have tried everything i can think to fix it. I have done memtest, processor tests, HDD tests, and...
BSOD Help and Support
Windows & upgrade error
Hi, I have an error code 0x80070241 while trying to upgrade from xp pro to 7 My windows 7 upgrade is a cd Thanks for the help:cry:
Installation & Setup
Windows 7 SP1 Upgrade: Error C000009A
Hi, everyone. I am trying to update my copy of Windows 7 Ultimate to SP1. In doing this, I get the following error message: Error C000009A applying update operation 109008 or 265936 (\Registry\...)Does anyone know what the problem is? I have tried booting into safe mode to find out more, but it...
Windows Updates & Activation
XP to Windows 7 Upgrade Error
:Dhi my name is Chris and i cant get Windows 7 Home Premium upgrade to show up on my grandmas computer we have call microsoft and no 1 could speak english and we couldnt understand them but they said u need to return the disc but i kno it works on mine i installed it but when i pop it in to her...
General Discussion
Windows 7 failed to upgrade error
Hello everyone, I'm new to what looks like a really good site, and I really appreciate being able to ask for advice here. What happened: At the very end of installing RC Windows 7, I got a "failed to upgrade" message, and then it said my system would automatically revert back to Vista,...
Installation & Setup

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 18:05.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App