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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

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