"To make changes to partitions, restart Windows from installation disc

Hey, I'm trying to re-install windows 7. Right now I have 32bit, but I'm trying to install 64, however I cannot delete nor format partitions. By the way, I'm installing windows from USB, so how can I solve this problem ???
During installation it says:
""To make changes to partitions, restart Windows from installation disc.".

Did you boot up with the USB, or did you start the install when you had Windows running ?

well yeah, i tried to install it while windows were running. sry i'm not good at computers and stuff haha

You need to boot up with the USB installer and run the install from there.
Then you should be able to delete partitions.

Here are some tutorials you can use with a lot of install info:
Clean Install Windows 7
Clean Reinstall - Factory OEM Windows 7

So i just did boot up, and i only see these options:
Start with windows 7 or windoes memory diagnostic.
There is no such an option like "usb"

By the way, ive alredy made my usb bootable

Is your BIOS a Legacy or UEFI?
To boot from the USB you must press a F key to launch the boot menu. On most computers is F12.

I only see this when i boot up :
Imgur: The most awesome images on the Internet

Not sure whether my bios are legacy or uefi

Your Seven Forum System Specs don't show any info that would help others trying to help you

There should be a way to boot from USB, but that depends on the PC.
Here is a tutorial to show you how to update your SF system specs so folks here can better help you.
System Info - See Your System Specs

Also, boot Windows (installed) and post a screen print of Disk Management.
That should show if you have UEFI or Legacy Bios.
Disk Management - Post a Screen Capture Image

Also, many people here won't click on an external link to see a screen print, for security reasons.
Here is how to post a screen print directly into your SF post - more people will see it and be able to help.
Screenshots and Files - Upload and Post in Seven Forums