Hi Muhammad,
I'm Rodrigo and I will help you.
Windows 10 uses the AES encryption method with 128 and 256-bit key lengths.
When you zip a any file it is only zipped, there isn't any encryption applied.
Windows 10 default Zip encryption
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Anonymous
I would like to know what encryption method does windows 10 uses while encrypting any folder?
If I zip any folder: is it only zipped or encrypted as well?
Windows for home | Windows 10 | Files, folders, and storage
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Anonymous
2022-04-29T13:02:01+00:00 Having trouble finding info on that. Windows 10 is updated so they will naturally use strong enough encryption for most people to not think about that.
You might be able to go with BitLocker encryption which they list some info and choices for https://docs.microsoft.com/en-us/mem/configmgr/protect/tech-ref/bitlocker/settings
Zip files via Windows itself offers no DIRECT encryption ability as far as I can see. 3rd party like 7zip offers that ability. Windows uses other means.