Full system re-installation

1. Complete copy of personal data in C:\ to another hard drive

2. Copy of all keys and passwords:

Go to https://keepass.info/download.html

Download portable file https://sourceforge.net/projects/keepass/files/KeePass%202.x/2.50/KeePass-2.50.zip/download

Create a database for passwords in KeePass

3. Backup passwords from Google, Firefox, etc.

Control passwords and delete unnecessary ones https://passwords.google.com/checkup/start?ep=1&pr=sa

https://passwords.google.com/options?ep=1 >> download

4. Import all keys from Google, Firefox, etc.

5. Clean all browsers

Google: chrome://settings/clearBrowserData >> advanced >> All