Hello everybody, i have three partitions c, d and e. My question is can i install win 8.1 64 bit from bios without losing files on local disc d and e?
Welcome to Tom's!
Data files will not be affected, although a backup is recommended. Since you need to do a clean install to get to 64 bit Windows, that will require a format of your C: drive only. You will also have to re-install ALL of your programs and apps.
If it's just data files (documents, spreadsheets, images, mp3s, videos, etc...) that content will remain intact. Any programs/applications that you installed onto those drives will need to be reinstalled as they've also written data to the C: Drive and Registry which will be wiped when you install Windows 64-bit.
Okey i have one more qeustion if i chose custom install over upgrade is my data on d, e still safe or not? https://www.google.rs/imgres?imgurl=http%3A%2F%2Fwww.fixedbyvonnie.com%2Fwp-content%2Fuploads%2F2013%2F07%2Ffixedbyvonnie-virtualbox-windows-8-1-custom-install-or-upgrade.png&imgrefurl=http%3A%2F%2Fwww.fixedbyvonnie.com%2F2013%2F07%2Fhow-to-install-windows-8-1-public-preview-in-virtualbox%2F&docid=BMSqdxsb46dXDM&tbnid=muPO5PCZMCWVuM%3A&vet=10ahUKEwiivc3Ki4vcAhWGHJoKHRPaArYQMwg_KAEwAQ..i&w=1042&h=864&bih=662&biw=1366&q=windows%208.1%20custom%20install&ved=0ahUKEwiivc3Ki4vcAhWGHJoKHRPaArYQMwg_KAEwAQ&iact=mrc&uact=8
You have to do the custom install. there are no settings to save. You will have to format your C: drive. As long as you do not re-partition your HDD or touch your D: & E: drives, you should be good to go. As stated earlier, it is still a good idea to back up your data from the D: & E: drives.