How to keep a backup of all your programs on windows 10?

Using Backup Program Files and Registry Settings is a method to Keep a backup of all your programs Windows 10. Here's an overview:

Backup Program Files and Registry Settings:

• Program Files Folder Backup:
  Copying the "Program Files" and "Program Files (x86)" folders can save the actual program files. However, this alone isn't sufficient because most programs also store data and settings elsewhere.
• Registry Settings Backup:
  The Windows Registry contains configuration details for installed programs and system settings. Exporting registry keys related to your programs can help restore configurations.

How to Keep a backup of all your programs Windows 10:

1. Backup Program Files:  
Navigate to C:\Program Files and C:\Program Files (x86).
Copy these folders to an external drive or backup location.

2. Backup Registry Settings:  
Open Registry Editor (regedit).
To export specific program entries, locate keys under HKEY_LOCAL_MACHINE\SOFTWARE and HKEY_CURRENT_USER\Software.
Right-click the relevant keys and select Export to save .reg files.

3. Restoring:  
To restore, copy the program files back to their original folders.
Import the registry .reg files by double-clicking them or using Registry Editor.