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Reinstalling Windows 7 - EFI or BIOS (Legacy) Install?
Hello all,
WARNING - Choose your Windows 7 installation method wisely!
In 2011, I bought a laptop, downloaded a Windows 7 ISO (non-SP1), burned it to a DVD and did a clean install of Windows 7 with no problems. However, the same procedure did not work so well the second time around. Let me explain further and learn from my mistakes:
OK, so this time, I downloaded a Windows 7 ISO that included SP1, burned it to a DVD and "tried" to do a clean install but was unsuccessful; here's why:
My laptop has a BIOS that is EFI capable and somehow the DVD player is connected to that functionality (or the Windows 7 installer detects it but I'm not sure). Anyway, I kept getting 2 clear signs that something might be wrong. The first sign was that the installer was trying to configure 3 partitions (instead of the 2 partitions that I expected) so I wiped them clean and hit "next." The second sign was that the installer could not reboot at scheduled intervals so I manually powered down and restarted as necessary. Well, I ended up with mucho problems after the installation so I had to figure out what was going on because it worked perfectly in 2011. Note: I also tried letting the installer create the 3 partitions and continued the installation with the same results.
So, I finally found a thread in another forum by a guy who was having a similar problem and when I looked at his boot choices, it hit me like a rock! He actually had a DVD boot choice of either EFI or Legacy BIOS and when he chose the legacy bios option his installation went smoothly.
So, not having his exact choices (because of my cheap laptop), I copied the Windows 7 ISO to a USB flash drive and that gave me the legacy bios installation that I needed. This time it worked perfectly!
In summary, I just wanted to share my experience with others who may encounter a similar situation wit the hopes it may save them some time and frustration.
Cheers!