error 0xc0000428 winload.exe cannot be verified

winload.exe digital signature cannot be verified error code:0xc0000428

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I want to dual boot windows 7 and windows 10.

I have windows 7 installed on my C drive. (disk manage image attached)

Win 10 (D drive) where I want to install windows 10.

IN installation process:
"Getting files ready for installation" completes about 25% and then it reboots and shows the error.

https://www.tenforums.com/attachments...windows_10.jpg


In boot option I have
1) Windows setup
2) Windows 7

When I click on option 1(setup), it shows the error and setup cannot from that point progress.

I have no problem booting and running windows 7(option 2).

Opps, there is no Disk Mgmnt screen shot attached and .. the screen shot you did attach does not show an error, only the install percent complete. These things happen.

Since you're just beginning, it might be more expedient to start over.
See: Windows 10 - Dual Boot with Windows 7 or Windows 8 - Windows 10 Forums

I would delete the D: partition, leaving it raw/unallocated, and let Windows manage it during the install.
Be careful - only the D partition.

The tutorial should guide you all the way through. Read it and ask questions before you begin - it's easier to answer a question than to fix something or start over

sorry for that.

I have attached disk partition image. Also deleted D drive and left it unallocated.

Oppps, still no Disk image - this is what I see when I click on the link in post 1



This might help:
Screenshots and Files - Upload and Post in Ten Forums - Windows 10 Forums

Ok, so your D: partition is now available to install Win10 - I'll wait for your next post to see if you have any questions about the Dual boot tutorial. It is well written and if you follow it, you should be up and running in very little time.

If there is anything in the tutorial that needs clarification or amplification, please don't hesitate to ask. Language sometimes gets in the way of understanding

For image look in my 2nd post.

I have attached error and disk images.

When win10 first came out months back I was actually able to install it in dual boot with win7.

homehome said:

for image look in my 2nd post.
I have attached error and disk images.

Thanks,

The error message is odd - you're installing using the media it seems to be asking for.

Try downloading the current Win10 ISO and either burn it to a DVD using Imgburn (download from ImgBurn server begins when clicked) or put it on a bootable flash drive using Rufus.
Download Windows 10 Insider Preview ISO - Microsoft Windows


The links in this post are also in the Dual boot tutorial, I just put them here to get you started.

Good find, I think you're on the right track.

Paraphrasing SIW's post:

Use bcdboot, it is on the Win7 install DVD
Boot up the Win7 install DVD
Select Command prompt

enter the following commands (*** are comments, not part of the command):

diskpart
lis vol *** identify the drive letters for the Win7 Boot partition and the active System partition
*** ----> the letters are probably be different in Diskpart
exit

bcdboot <driveLetter-Win7 Boot>: /s <driveLetter-active System>:

Let's say that Diskpart tells you

J: is your Win7 Boot drive letter
H: is you active System drive letter
These drive letters (J and H) are only for examples - your letters will be different.

The command to use would be:

bcdboot J: /s H:

There might be another set of commands to run if this doesn't resolve the issue, but start with this.

IN installation process:
"Getting files ready for installation" completes about 25% and then it reboots and shows the error.

Looks like a RAM issue to me. I would try running "Memtest86+" and make sure the RAM sticks are fine.

RAM - Test with Memtest86+ - Windows 7 Help Forums

Anshad Edavana said:

Looks like a RAM issue to me. I would try running "Memtest86+" and make sure the RAM sticks are fine.

RAM - Test with Memtest86+ - Windows 7 Help Forums

ran 3 pass with no error