Reset the laptop completely like mobile phone. But how?

I have a Sony Vaio with the Windows 7 Home Premium operating system and it's pretty old.
I'd like to reset it so that all the data, all the accounts, all the apps, really everything disappears from the laptop and he has nothing on it.
Almost like when you get yourself a new laptop.
Now I wanted to ask how this works? Do I need a CD for that?
The internet says that I do not need any but I have no idea…

Maybe this helps:

Note, however, that not only all apps and settings but also all your user data (documents, photos, music, etc.) are lost, so it's best to back up all the data you want to keep somewhere!

It is better to reinstall Windows 7 clean. On the bottom of the laptop is the Windows 7 Product Key. Write down this. So you can download here the Windows 7 ISO: https://www.microsoft.com/...d/windows7

Then you install the tool balenaEtcher: https://www.balena.io/...io/etcher/ So that the downloaded Windows 7 ISO flash on a blank formatted USB stick.

When done, stick the stick and restart the laptop. Immediately press F12 or ESC. Now you are in the boot menu and you can boot the stick. Now you can cleanly reinstall Windows 7.

P.S. From 2020, the support of Windows 7 will be completely discontinued. The laptop can then continue to be useful with Linux. I recommend the ubuntu-based Peppermint OS. This is easy to use. Here is the download: https://peppermintos.com/iso/Peppermint-9-20190102-amd64.iso Then flash the ISO with the tool balenaEtcher on an empty formatted USB stick and then boot the stick. The installer sets up the WLAN immediately. It also offers the possibility to delete the hard disk. I recommend a full installation. One should also choose the item third-party software. It is the same as the latest Firefox mitinstalliert. When the installation is complete, the system restarts. When the desktop appears, the update manager logs on. One should install these updates. The update manager cares not only about the system but also about the installed programs. You do not have to update each program individually as with Windows. Updating can also be completely automated.

Also on Spotify you do not have to do without Linux. The installation goes like this. First you start the terminal. This is the command line. Enter the following commands here or copy & paste (identical to Windows) and conclude with Enter:

sudo apt-key adv --keyserver hkp: //keyserver.ubuntu.com: 80 --recv-keys 931FF8E79F0876134EDDBDCCA87FF9DF48BF1C90

echo deb http://repository.spotify.com stable non-free | sudo tee /etc/apt/sources.list.d/spotify.list

sudo apt update -y
sudo apt install spotify-client -y

Only install the Flashplayer if you absolutely need it. Enter the following in the terminal and conclude with Enter:

sudo apt install flashplugin-installer

This installs a script that automatically downloads and installs the Flashplayer from the Adobe page.

Also Skype is available for Linux: https://go.skype.com/...nux-64.deb After download just double-click install.

Minecraft is also available for Linux: https://launcher.mojang.com/...ecraft.deb Is also installed with a double-click. If Java is not already installed, it will be automatically installed.

If you need a youtube downloader and converter, just install this firefox addon: https://addons.mozilla.org/...-download/

Peppermint OS requires less system resources than Windows 7. Even if you use a desktop theme with transparency effects.

Before… If he's just slow…

It'll work if you assign more memory to C:

Deduct about 20 GB from D:.

Goes with Ease US Partiion Master 10.1.

First show off with the sliders of D: 20 GB. Then C. Zuzweisen.

Only after clicking on "execute instructions" is this really done.

All data is retained.

Give it a try. Everything is going really fast again.

Otherwise. For a new installation you need a CD, DVD or an SSD, USB stick that is bootable. The bootable is important.

Then when that starts… "advanced installation" select… Then you can flatten all old partitions and reformat, their greetings determine.

Also there's… As long as you do not click on "Run", nothing happens.

But then just leave your fingers from the PC, the PC is back.

New Teiber and graphics, etc, you have to install it yourself. Win does not know her.

Therefore, think carefully, if you want to do that as "ignorant".