Windows 10 very slow booting and working.....

Make sure you attach the USB drive to a USB 2.0 port, not USB 3.0

Normally when you start the laptop you press a F(?) key to launch a boot menu. Try F9
Witch model is your laptop?

Is the USB drive formatted as Fat32 or NTFS?

Just now I put into CD rom old Windows 7 adn installation start. Finish it and after upgrade to Win 10..? or download from torrent ISO Win 10 and install ..??

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Megahertz said:

Is the USB drive formatted as Fat32 or NTFS?

FAT32...

I did not understand your last post.
Open disk manager (C:\Windows\System32\diskmgmt.msc). Is the USB drive set as Active?

I press F9 (Boot) and nothing happen. I put into port USB 2.0

Sent you a private message.

Megahertz said:

Open disk manager (C:\Windows\System32\diskmgmt.msc). Is the USB drive set as Active?

I can't open Disk Manager, because I put a new SSD and I can see only BIOS menu

Munder said:

I can't open Disk Manager, because I put a new SSD and I can see only BIOS menu

Use your other laptop.

.. Are you asking of it..? ?

The USB drive seems to be ok.
Insert the USB drive on a USB 2.0 port. You must insert it before you start the computer.
Start the computer. Enter BIOS. You should see the USB drive under boot menu.