Windows 10: Dual booting windows 10 and 7 issues.

Hi everyone,

I'm dual booting windows 7 ultimate and windows 10 LTSC they are UEFI installs, I installed windows 7 first.

When windows 7 was the last booted OS it will show the old black bootloader selecting windows 7 from there will work just fine, but selecting windows 10 will result in a plain blue screen (as in the graphical windows 10 bootloader not a BSOD) and the PC freezes, force shutdown and restart will show the windows 10 bootloader instead and I can boot up windows 10.

Same thing happens when the last booted OS was windows 10 but it will show the windows 10 bootloader and the pc will freeze on a black screen when trying to boot windows 7.

Some help would be appreciated .

Never had any issue dual booting multiple linux installs and windows in the past (using grub2)

submitted by /u/2stupid2ThInK
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:)

 

windows 10 slow boot

I was having a slow boot issue on my Windows 7 install a little while back. It would take about 30 - 40 extra seconds to boot up for whatever reason.

I would try following these steps, while this didn't solve my issue, it did increase Read/Write to where it should be.

10 Tips for SSD Optimization in Windows 7 - Part 1

Looks to be similar to this: SSD Optimization for your Windows Gaming PC and Tips and Tricks


In the end, I had to reinstall my Windows 7 entirely to fix the booting issue. It was taking around 35 seconds to boot, and after the fresh install it takes about 7 seconds to boot.

 

Unable to boot to Windows 7 with error: windows 10 something 7 on dual boot with Windows 10

Hi,

Thank you for posting in Microsoft Community, we appreciate your interest in Windows 10.

Do let us know the following to assist you better with this issue:

• How have you performed cloning on the fresh drive perform an upgrade?
• Have you used any software to perform cloning?

As per the description, I understand that you are facing issues with dual booting to the operating systems Windows 7 and Windows 10.

I suggest you to perform automatic repair on Windows 7 drive as it is crashing to load.

Step 1: I suggest you to install Windows 7 using the media creation tool:

Installing Windows 7 using the media creation tool

Step 2: After installing Windows 7, perform an Automatic Repair.

I would like to inform that, if your Windows 7 is not able to boot or startup, Automatic Repair will come into action and try to diagnose and fix the issue. It will scan system files, registry settings, configuration settings and
more and try to fix the problem on its own, automatically.

Perform the Automatic repair:

• 
  When your computer starts, wait for the manufacturer logo to check the option for boot menu, it will usually be
  F12.
  
• 
  The boot menu key might differ with each manufacturer. If you are unable to find the boot menu key, you may refer the user manual.
  
• 
  Restart the computer, when the manufacturer's logo is displayed, keep pressing the
  Boot menu option key to enter the boot menu and change the boot option to
  CD\DVD ROM.
  
• 
  After you boot your computer using Windows 7 DVD, a black screen appears with gray text "Press any key to boot from CD or DVD". Press any key.
  
• 
  Select the correct time and
  Keyboard type.
  
• 
  Click Repair your computer in the lower left corner
  
• 
  Click on Troubleshooting, advanced option and then click
  Automatic repair.
  

For more information: Startup Repair: frequently asked questions

Hope it helps. Kindly update the status of the issue and required information, we will be happy to help you.

 

Dual Boot Windows question.

here is a guide that should do the trick: https://www.howtogeek.com/197647/how-to-dual-boot-windows-10-with-windows-7-or-8/

Just remember if u want UEFI on Windows 10 u most have UEFI on your Windows 7 too if not u need to go change it in the bios everytime u want to go back to Windows 7.