Can't install windows 7 ultimate on my notebook

I cant see any UEFI or CSM...But at least my "SATA Mode is on "AHCI mode" whatever this means....

If you are using flash stick installer, I would enable F12 Boot Menu in BIOS, then set the HDD first to boot, trigger the flash stick to boot by tapping the F12 key at startup. This may avoid the flash stick reloading during the required reboots during install. But if it happens, just unplug the stick so it can take up with the install where it left off - stick isn't needed anyway since files are already copied off it.

The installation run normally from the usb,but when I get to "where do you want to install windows" it gave me this error... What should I type in the CMD to get the installation proceed normally?

Hey,Guys! I did it finally! Thank you all for your patience,I am complete newbie and never installed Windows so far... I am very glad that I managed to learn some things and now I'm confident that I can make it! Thank you all one more time and have a great day! :)

Glad to hear it. Good work!

Be sure to stick as closely as you can to the tools and methods compiled in Clean Reinstall - Factory OEM Windows 7 which will assure you'll get and keep a perfect install for as long as you do.

I have one more question...My HDD is 320GB and during the installation I separated disks C: and D: respectively to 69.9 Gb for C: and 228 for D:. But today I saw this:

I have obviously exchanged them! So if this is a big problem and what should I do? P.S. Windows 7 is installed in disk C:....

If these are on the same HD then confirm there are no files on D, in Disk Mgmt delete D. Then shrink C by as much as you want, create a new D in the Unallocated Space.
Partition or Volume - Delete
Partition or Volume - Shrink
Partition or Volume - Create New