Reset Toshiba laptop Windows 7 without CD

Here is the photo.

Yes, all viruses disappear and yes you can install Vista on 7 but I strongly advise against it, Windows Vista being an unstable system and probably the worst operating system from Microsoft, it would only make things worse. But I really invite you to check this page: https://www.commentcamarche.net/faq/17839-restaurer-un-ordinateur-toshiba-a-son-etat-d-usine#mise-en-garde-prealable
If you really want a fast Windows 7 without viruses, you will need blank CDs.

I don't think it's possible to restore your system without a blank CD or USB drive. However, if you're sure it's due to viruses, try these antiviruses one by one:
1) AdwCleaner,
2) Malwarebytes.

Ah, if that's the problem, I think all you need to do is change the boot order in the BIOS to do that:
https://forums.cnetfrance.fr/tutoriels-materiel-et-hardware/170603-modifier-l-ordre-de-boot-du-bios-pour-booter-sur-un-cd-dvd-ou-un-peripherique

if you changed the hard drive, it wouldn't be useful because it would be empty.
on another Windows 7 pc, burn a repair cd as below, it should allow you to repair the boot
http://www.vista-xp.fr/forum/topic4805.html
then here’s how to use it
https://www.pcastuces.com/pratique/windows/reparer_demarrage/page3.htm

Thank you for your replies, but is it not possible without using a second computer?
Is it possible for it to work again by going into the BIOS? But when I try to access it, it asks me for a password that I have never set.

He is asking you for a second one because what you have is not an installation DVD but a factory reset DVD, and in fact, at least three are needed. That's why he is asking for the second one that apparently you haven't made.
Create the startup repair CD on another Windows 7 PC (32 or 64 bits depending on the faulty computer) to get your PC back to how it was before (if this restoration process hasn't destroyed Windows 7) and then to be able to perform the restoration using the recovery partition.

Hello, why restore a computer when you can make it much (or at least moderately) faster?
Pc Decrapifier is a great little software that detects all your unused and/or unnecessary apps, and I'm not getting paid to promote it :) I just think this software is awesome:
Install it: https://www.commentcamarche.net/telecharger/utilitaires/17041-pc-decrapifier/
Then:
1) Click on Analyze (the software is in English).
2) Three lists appear, the first is recommended, these are the software that are useless to you and can be safely removed. The second is questionable, these are programs that we think you can delete, be careful! If you don't know these programs, don't delete them as they may be essential for your computer. The third list is useless, these are all the programs installed on your computer.
3) Depending on your choices, check the software you wish to remove, then click on Remove Selected.
Hoping to have helped you.
Max.

If you really want to reset your system, do not use third-party software; look here and you will find everything you need: https://www.commentcamarche.net/faq/17839-restaurer-un-ordinateur-toshiba-a-son-etat-d-usine#mise-en-garde-prealable
In any case, you will need a blank CD/DVD.