I cannot rejoin a computer to the domain nor can I dual boot from the same computer.

Hi experts,

First, may I ask why the question is now after the actual question. Doesn't make any sense to me. Anyway....

Just so you don't think I am ten years behind the times, I have purchased a new server with Hyper-V and converting clients to Win 10 Professional. Because Win 7 Pro has a ton of information on it and apps I want to move, I installed another SSD for Win 10 and am using it. It dual boots, so I can go back and forth as necessary. I can't recall why, but I  needed to take Win 7 off the domain, then add it again. So, I took it off the domain, made it a workgroup with a local admin, changed the name, then opened a browser and used http://connect to connect to the domain again. It started, and I got to the point I selected one user, then it gives an error message. I apologize I likely need to get the error message. I believe it was about .NET, so I installed 4.7. Still no luck. Oh, it is trying to connect to SBS 2008. Told you I was behind the times.

While this is a separate issue, it pertains to it, because it can take me ten reboots to get back to Win 7. The only two things in bootup order are the two OS. There are times that during bootup, it shows the whole bar across the BIOS screen, and I can easily select one. However, there are times that it brings me to a GUI, a light blue screen with two rectangular boxes in the upper left, one of which says Win 10 and the bottom one says Win 7. It looks great, but there seems to be no way to move the selection to Win 7 nor stop the clock which is about eight seconds. So, in that instance, it always boots back to Win 10.
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Bert2005Asked:
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JohnBusiness Consultant (Owner)Commented:
So, I took it off the domain, made it a workgroup with a local admin, changed the name, then opened a browser and used http://connect to connect to the domain again.

Go to Advanced System Properties, Computer Name and in that section, click on Join Domain and authenticate.  That should work.

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Bert2005Author Commented:
I did all that, and it worked. Shows it is connected to the domain. However when I log back into Win 7, it takes me to one of the local accounts.
JohnBusiness Consultant (Owner)Commented:
Windows 7 uses Local Accounts and Windows 10 will use a Local Account for the Domain.  (Local as in not Microsoft Email account)

Now do you mean you cannot log into a Doamin Account?
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JohnBusiness Consultant (Owner)Commented:
it takes me to one of the local accounts.

Remove the Domain Profile (Advanced System Properties again) , restart and try rejoining again.
Bert2005Author Commented:
No, it worked. After doing what you recommended, it came back to a screen to log in to Win 7. The default log in was to a local account. I didn't notice the option to change users. I would in normal circumstances, but it got right by me.

So, thanks. Worked perfectly. I wonder why we always just that join computer through the browser thing. I mean I use the Advanced System Properties to take it off the domain. And, the two selection at the bottom of that window seem awfully similar.

So you have helped me do two things. One great. One is awful.

Great that I have all my files back. Awful in that I have all my files back. In other words, tons of icons and pdfs, etc., I need to go through.

Thanks.
Bert2005Author Commented:
I chose the best solution. I do not know how to reward points anymore. Sorry. I would give 500 X 4. :-(
JohnBusiness Consultant (Owner)Commented:
Thanks for the update and it is working then.
Bert2005Author Commented:
Yep, working great! Thanks.
JohnBusiness Consultant (Owner)Commented:
Good news
footechCommented:
I know this is closed, but just wanted to add something.

However, there are times that it brings me to a GUI, a light blue screen with two rectangular boxes in the upper left, one of which says Win 10 and the bottom one says Win 7. It looks great, but there seems to be no way to move the selection to Win 7 nor stop the clock which is about eight seconds. So, in that instance, it always boots back to Win 10.
The screen as you describe is the normal boot selection screen you should see when you have multiple choices in your BCD (boot configuration database).  You can even make the screen appear when you only have one entry, but by default it doesn't show.  If you're unable to use the keyboard to change your selection at this screen, then you likely need to adjust some BIOS setting to allow the USB keyboard to be detected/enumerated earlier, i.e. during POST (I've had to do this on different Dell machines).
Bert2005Author Commented:
Hi footech,

Which begs the question. Do you have any idea where I should look in the BIOS for that setting?

Thanks.

Bert
footechCommented:
That would depend on your BIOS.
On the Dell machines, it was under the POST section > Fast Boot.
Bert2005Author Commented:
Thanks.
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