I bought a Toshiba laptop and don't like Windows 8. I'd like to revert it to Windows 7. I'm fine with leaving the Win 8 Recovery partition, unless I need to remove it. Can I just format the Windows 8 partition or do I need to format the whole disk? Can Windows 7 be installed on GPT or does it require MBR?
I could not get my Windows 7 64-bit disk to work with the default UEFI BIOS, but I could switch it under:
System Configuration ->
Boot Mode =
This opened up a new option:
SATA Controller Mode
and the Win7 disk would work with either
Compatibility. I currently have it on
I needed to delete the whole hard drive and change it to MBR though, since I could not install Windows 7 after deleting the Windows 8 partition. So to change the disk to MBR I followed this site:
Then I installed Windows 7 easily. Lastly I just had to add the drivers for a couple things (Network and USB). The Toshiba website didn't have any Windows 7 drivers, so I had to find them online. I used Realtek's website for the Ethernet and Wifi drivers. I used
Unknown Device Identifier to determine the exact product number that I needed the drivers for:
You can check the Intel site for your Toshiba drivers. Just identify the chipset, may require a call to Toshiba Tech Support. Mine is a P75-A7200 with the HM86 chip set. A little trick for all the drivers as follows:
Installed two disks, one GPT UEFI boot windows 8 and the other CMS AHCI boot Windows 7. In Windows 7 device manager locate any unknown or flagged drivers and select update from a specific location. Navigate to the Windows 8 partition and select the drive letter:/Windows directory, include all subfolders and most of your driver issues will be solved.