Does Whole-Disk Encryption Slow Your PC? ⚛️
Explore if whole-disk encryption affects performance and the risks of data loss without proper security measures.

Ask Leo!
4.1K views • Nov 21, 2025

About this video
⚛️ Does whole-disk encryption slow your computer? You might be surprised. The bigger risk is losing access to your data if you’re not careful with your encryption keys and backups.
⚛️ Whole-disk encryption speed
Whole-disk encryption barely slows modern computers. It works imperceptibly when reading or writing files, and today’s fast CPUs and SSDs make any speed difference negligible. The real danger isn’t speed, it’s losing access. Always back up your encryption key, remember your password, and keep unencrypted backups of your files safe.
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Chapters
0:00 Whole-disk Encryption and Computer Performance
0:50 “Whole disk” is about the disk
2:07 Encryption is about disk activity
2:45 More important than speed
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#askleo #encryption #performance
⚛️ Whole-disk encryption speed
Whole-disk encryption barely slows modern computers. It works imperceptibly when reading or writing files, and today’s fast CPUs and SSDs make any speed difference negligible. The real danger isn’t speed, it’s losing access. Always back up your encryption key, remember your password, and keep unencrypted backups of your files safe.
Updates, related links, and more discussion: https://askleo.com/97268
🔔 Subscribe to the Ask Leo! YouTube channel for more tech videos & answers: https://go.askleo.com/ytsub
✅ Watch next ▶ How to Save or Recover Your BitLocker Recovery Key ▶ https://youtu.be/ktPiFWBoIU0
Chapters
0:00 Whole-disk Encryption and Computer Performance
0:50 “Whole disk” is about the disk
2:07 Encryption is about disk activity
2:45 More important than speed
❤️ My best articles: https://go.askleo.com/best
❤️ My Most Important Article: https://go.askleo.com/number1
More Ask Leo!
☑️ https://askleo.com to get your questions answered
☑️ https://newsletter.askleo.com to subscribe to the Confident Computing newsletter.
☑️ https://askleo.com/patron to help support Ask Leo!
☑️ https://askleo.com/all-the-different-ways-to-get-ask-leo/ for even more!
#askleo #encryption #performance
Video Information
Views
4.1K
Likes
425
Duration
5:24
Published
Nov 21, 2025
User Reviews
4.6
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