Windows 8.1 to Windows 10 upgrade

[G3org314]

Hello,

I want to upgrade my windows 8.1 to windows 10. My question is: do i lose any of my programs already installed (i have many applications and many games installed - i have 2 TB of space and 120gb SSD where the windows is installed).

If i update to windows 10 from windows 8.1 and not clean installing, do i get any errors or malfunctions of the system (like..the new windows won't see my 2 hdds or other issues)?

I appreciate any answer, because i wouldn't want to upgrade and then lose my current data. The reason for i want to update to windows 10 is to be able to play dx12 games.

Thank you!
Kind regards

 

[photonboy]

1) NO. just select to keep applications and data.

2) NO. should not get any errors. Can't absolutely say no, but not likely.

Other:
*Create a backup IMAGE of your SSD and store it on your hard drive prior to attempting. Acronis True Image Free for WD, DiscWizard Free for Seagate. There is a W8 backup I guess but I've never used it.
http://winsupersite.com/windows-8/windows-81-tip-use-system-image-backup