Windows 10/7 dual boot - Windows 7 won't start

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AJWhite

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Tech Support Guy System Info Utility version 1.0.0.4
OS Version: Microsoft Windows 10 Home, 64 bit
Processor: Intel(R) Core(TM) i7 CPU 930 @ 2.80GHz, Intel64 Family 6 Model 26 Stepping 5
Processor Count: 8
RAM: 6135 Mb
Graphics Card: AMD Radeon HD 6770, 1024 Mb
Hard Drives: C: 296 GB (266 GB Free); E: 0 GB (0 GB Free); F: 465 GB (366 GB Free); G: 596 GB (253 GB Free);
Motherboard: ASUSTeK Computer INC., P6T SE
Antivirus: Windows Defender, Enabled and Updated

I have a computer on which I have been running windows 10 and windows 7 in a dual boot situation for sometime. A while ago windows 10 crashed and would not work again. I mainly use windows 7 which is on a separate hardrive. I did not want to damage the windows 7 partition so I disconnected that drive and reinstalled windows 10 on the other drive (which it was already on.) I found that the only way I could do it was to format the drive and install a new version of window 10. However now the computer does not see windows 7 and will only open windows 10. The only way I can start windows 7 is to disconnect the windows 10 drive and the 7 will boot.

I think the problem may be that the bios says there are no drives in the computer but , that has never given me any trouble in the past. I can see both drives in computer management and that has run like that from new.
Any one have any idea why this is happening??
Allan
 
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Poul-Anker
Have you tried using MS config? (windows key > msconfig)
- This is a tool to config windows boot parameters

If you can't see both drives when you have the config you want, then the problem may lie elsewhere.
 
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Cookiegal

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Allan,

I've deleted the attachment as there is no need to repeat the text already typed in the post.
 

AJWhite

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sorry about that but I could not find how to tell what computer I had anywhere else.
 

Cookiegal

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That's OK. You already did in the post. The attachment was identical to the entire first post of the thread.
 

AJWhite

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To snowhound 86, Thank you for your suggestion but I have tried that and it does not give me the opportunity to try anything else. The only way I can choose which system is to pull the cables out of the hard drive that holds the system I don't want. Each system is on a separate drive, and the only way I can make the computer start with windows 7 is to pull the cable out of the windows 10 drive, which I will do when I finish answering these questions. I had it working before this latest problem happened by downloaded a program from the net but I cannot find that program at the moment.
 
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Did you had Windows 10 and Windows 7 on the same HDD and Windows 10 just crashed on you and you want to reformat W10 without losing W7 (I just want to make sure if this is what you are referring to).
 

managed

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You should be able to tap the F8 key just after switching on to get a menu where you can choose which hard drive you want to boot to.
 

AJWhite

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thank you for your reply, but as I have already explained I have two drives in this computer . one is 500 Gb on which is installed windows 7. This was a new computer that was purchased by our computer club. Then, when we decided to get windows 10, our technition took it away and installed a new harddrive and put wildows 10 on it. I obtained it when our club decided to convert all our computers to windows 10. (big mistake) It has been running perfectly ever since as a dual boot machine until I went into the windows 10 community because I was having trouble getting my wireless printer to print from it as this computer is not wireless. and at the time I could not find the correct cd for the printer. Since that time, I could not run windows 10 anymore nothing would work.

I did not look at it for a long time because I thought the drive had been partitioned and I did not want to damage windows 7. When I got desperate and had the time, I took the side off the case and saw it had the two drives, so I knew if I disconnected the windows 7 drive I could not damage it. That is what led me here.

However I have now found out that windows 10 does not like any competion no even big brother. If I run 10, it does not even see 7. So if I want to run 7 I have to disconnect the 10 drive and then 7 will start no trouble. But I have downloaded a program that will fix the dual boot but I do not think I am doing it properly. I will have to download it in windows 10 and see if it will work there because windows 10 can see windows 7 but not vice versa.
 

managed

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The F8 method gives a boot menu where you can select which drive you want to boot, it is independent of the way the drives behave and should work in your case. Have you tried it ?
 

AJWhite

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I have tried pressing f8 when I have had the two drives connected but the computer does not give me the opportunity. It just starts in windows 10. I have just disconnected the windows 10 drive now and have started windows 7 but before it would start, I had to go back and start the computer off the windows 7 repair cd and allow it to repair the boot files. I am trying to fix the boot files with Easy BCD 2.4 which I have used before but this time it does not seem to be working and I am not sure why. Any ideas??
Also, I am not sure if I am using this community correctly because I have another computer that is only windows 10 and when I open that I receive emails about the answers I get on the site. Now I am on my windows 7 computer and have already answered this question but somehow I lost the answer before I could click on "post reply". I have the EasyBCD program on the windows 7 drive so I cannot run it when I am in windows 10, do you think I should delete the windows 10 drive and then try BCD before I install windows 10 because I can see both the drives in windows 7?
 

managed

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If you re-install 10 with the 7 drive still connected it should create a menu where you can select which OS to use when you start the computer.

That's probably the easiest way to fix this, just make sure you install 10 onto the correct drive !
 
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This was a new computer that was purchased by our computer club. Then, when we decided to get windows 10, our technition took it away and installed a new harddrive and put wildows 10 on it. I obtained it when our club decided to convert all our computers to windows 10. (big mistake).



.
Would it be much better to give it to your IT technician to repair it for you.
 
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