windows and boot mgr

[HermanT]

I want to understand how windows and system work and find each other...

 

I had an experience yesterday.

 

My friend had no drive in his system, so I offered him one of my old hard drives. We went to my place, hooked it up to my machine, installed windows 7, and the first time windows got on the desktop, we unplugged it. Took it to his place, hooked it up to  his machine. And bios was saying, if I recall, either no bootable drive detected, or no boot mgr detected.

 

Then when I came home to boot my machine, while booting, BIOS (i think it was bios) was offering me to pick between windows 7 and windows 7. Even though I had removed that drive, we installed windows on, the system was still saying, hey, pick a drive...

 

So first of all why couldn't we boot windows at his PC?

 

And secondly, if you install windows, does it mean that some information goes to your bios? I was shocked to find out, that my system remembered that it had 2 drives with windows (although only 1 was plugged).

 

And so now I have to always pick between 1 windows 7 and another windows 7 when I boot... how do I fix that?

 

Thanks

[Krzyimprt]

And so now I have to always pick between 1 windows 7 and another windows 7 when I boot... how do I fix that?

 

Thanks

http://www.sevenforums.com/tutorials/104341-bootmgr-missing-fix.html

 

 Your master boot record was overwritten and it didn't know which one to boot from. He most likely made a second partition and installed windows on it.

[HermanT]

http://www.sevenforums.com/tutorials/104341-bootmgr-missing-fix.html

 

 Your master boot record was overwritten and it didn't know which one to boot from. He most likely made a second partition and installed windows on it.

tried it out, doesnt help... first of all I cant even log onto windows 7 master boot record (of the disk that I unplugged)

 

I ran all the suggested stuff on my OS drive, I still have 2 windows 7 on startup...

 

what is master boot record, where is it stored? on the drive right? why does my system detect 2 windows 7 or 2 master boot records when I only have 1 drive plugged? Is it that some part of information is stored in the bios? how do I delete it?

[Krzyimprt]

tried it out, doesnt help... first of all I cant even log onto windows 7 master boot record (of the disk that I unplugged)

 

I ran all the suggested stuff on my OS drive, I still have 2 windows 7 on startup...

 

what is master boot record, where is it stored? on the drive right? why does my system detect 2 windows 7 or 2 master boot records when I only have 1 drive plugged? Is it that some part of information is stored in the bios? how do I delete it?

MBR is at the beginning of the partitioned drive. Pretty much tells it how to boot. You can use EasyBCD to fix your two windows thing at start up.