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Answer» <html><body><p>I have Problem while installing a 2nd OS (W7) on a laptop with W8.1<br/> <br/>I am trying to have 2 OSs on the same HDD. My laptop is an Acer V3-572-5217.<br/><br/>I partitioned the 1 TB drive into 2 partitions, on the first is pre-installed W8.1 and in the othert I want to install W7.<br/><br/>I set an USB drive with RUFUS program. Inside that program I configured the format style as GPD because the HDD has GPD format style. <br/><br/>Now, when booting from the USB (With W7 Ultimate 64bit) (UEFI is enabled), the files charged and the screen of "Starting Windows" appeared, but then a line on the top of the screen appeared like the screen was cracked, the line disappeared and then the laptop froze. <br/><br/>I dont want to <a href="https://interviewquestions.tuteehub.com/tag/completely-409686" style="font-weight:bold;" target="_blank" title="Click to know more about COMPLETELY">COMPLETELY</a> clean the HDD because I would lose the original Windows 8.1 <br/><br/>Please help me.<br/>I have done this more that once. Here are method(s) I use.<br/>A). Use two drives with a boot manager that let rs you select either drive.<br/>OR<br/>B). Obtain a Windows 8.1 install DVD <br/>OR<br/>C) Do not use UEFI. <br/><br/><a href="https://interviewquestions.tuteehub.com/tag/imo-498896" style="font-weight:bold;" target="_blank" title="Click to know more about IMO">IMO</a>, your job is easier if you have three hard drives to work with.<br/>The drive in the computer, an external backup, and a spare drive used for temporary configurations.<br/><br/>Your suggestion is a popular topic. The answer is not what you want to hear.<br/>See here:<br/><a href="https://www.tomshardware.com/forum/60808-63-install-win7-win8-laptop">How to install Win7 on my Win8 laptop? </a><br/> Quote</p><blockquote>Once you install windows 8 on a system it will not allow you to install a prior OS like windows 7, this is because of the way the file system is layed down on the HD.<br/>Windows 7 uses a NTFS file structure where as Windows 8 Uses a GPT file structure.<br/>The data is layed down and located on different parts of the drive. That is why windows 7 cannot install due to the Gpt format of the drive. As it is an older operating system and does not understand GPT format.<br/></blockquote> The above may be wrong. I don't know  The link below may be correct.<br/> Quote<blockquote>If Windows 8 was preinstalled on your laptop you will need to get into bios on your laptop and turn off UEFI Secure Boot and enable "Legacy" boot.<br/>Installing a new OS can sometimes be a complicated process especially if windows doesn't have network or wireless drivers for your particular network card baked into the OS. What I would do is not <a href="https://interviewquestions.tuteehub.com/tag/touch-11256" style="font-weight:bold;" target="_blank" title="Click to know more about TOUCH">TOUCH</a> your current HDD and just give it a go with the new SSD and post back here with any problems you might have. <br/></blockquote> <a href="https://www.tomshardware.com/forum/id-1624113/install-oem-win7-win8-laptop.html">http://www.tomshardware.com/forum/id-1624113/install-oem-win7-win8-laptop.html</a><br/>What would you like to try now?  <br/>Another solution you might want to try which i also use on my laptop is, downloading a virtual <a href="https://interviewquestions.tuteehub.com/tag/machine-550312" style="font-weight:bold;" target="_blank" title="Click to know more about MACHINE">MACHINE</a> like virtual box.....go to virtualbox.org then download the windows version on your windows 8.1 then install windows 7 in the virtualbox.<br/><br/>or<br/><br/>get an external hard drive, install windows 7 in it, then next time you boot up and want to boot into windows 7, with the hard drive plugged in, start up your computer and it boots into windows 7 or if you having troubles with that, just select  the hard drive from your bios to boot up windows 7 Quote from: raffy347 on November 02, 2015, 01:53:35 PM<blockquote>...<br/>get an external hard drive, install windows 7 in it, then next time you boot up and want to boot into windows 7, with the hard drive plugged in, start up your computer and it boots into windows 7 or if you having troubles with that, just select  the hard drive from your bios to boot up windows 7<br/></blockquote> Have you done that? Ever? How?<br/>It's safe to ignore Raffy's advice above... Quote from: Geek-9pm on November 02, 2015, 02:21:00 PM<blockquote>Have you done that? Ever? How?<br/></blockquote> ......<br/><br/><br/>Oh well thats how i use my windows  7....virtual machine/ external hard drive</body></html>


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