How To Fix Dell HDD, Hard Drive Not Detected, HDD Not Found, HDD Not Installed

THIS VIDEO HAS BEEN UPDATED HERE:    • How To Fix Dell G5 Gamer No HDD Found...  
Use this video to troubleshoot and repair why your Dell is showing a HDD Not Detected, HDD Not Found, HDD Not Installed error or other boot up issues. Make sure these are happening AFTER the initial Logo Screen. Check out the FAQ's and Related Video Links below !!

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FAQ's:
Q: What are the buttons you press?
A: F2 - BIOS, F12 - Diagnostic Options

Q: What if I cannot seem to switch between Legacy and UEFI or switching does not work?
A: If you cannot locate the options to switch between or if switching does not work, then skip that step and continue with the rest of the steps in this updated video:    • How To Fix Dell No Hard Drive - Hard ...  . What was the result of the Diagnostic Scan as seen there?

Q: It has an error saying 'legacy option cannot be enabled with PTT enable'
A: Disable PTT Security by going to the Security Tab, and selecting PTT Security. Uncheck the box. If you cannot locate the options to switch between or if switching does not work, then skip that step and continue with the rest of the video :) What was the result of the Diagnostic Scan?

Q: What if my diagnostic test shows the HDD as 'Not Installed"?
A: If the diagnostic test wont detect the HDD, it bay be either loose or bad. I would 'Reseat' the HDD as seen here in this updated video:    • How To Fix Dell No Hard Drive - Hard ...  . Try the scan again. If it still says that its not installed, then its most likely bad and needs to be replaced. You can see replacement examples here in the Computer Component list: https://www.amazon.com/shop/pcmonkey/...
You would also then need to install an operating system onto the new one.
How to install Windows 10:    • How To Install Upgrade Dell to Window...  
How to install Windows 11:    • How To Install Upgrade to Windows 11-...  

Q: My hard drive didn't pass the test. What do I do now?
A: If your HDD fails the test, I would 'Reseat' the HDD as seen here in this updated video:    • How To Fix Dell No Hard Drive - Hard ...  . Try the scan again. If it still says that its not installed, then its most likely bad and needs to be replaced. You can see examples of HDD's and SSD's here in the Computer Component List: https://www.amazon.com/shop/pcmonkey
You would also then need to install an operating system onto the new one.
How to install Windows 10:    • How To Install Upgrade Dell to Window...  
How to install Windows 11:    • How To Install Upgrade to Windows 11-...  

Q: Changing the settings in BIOS didn't help and my HDD passed the test.
A: If changing the setting sin BIOS didn't identify the issue and your Hard Drive passed the test, then the issue is most likely Operating System related. You would need to reinstall it.
How to install Windows 10:    • How To Install Upgrade Dell to Window...  
How to install Windows 11:    • How To Install Upgrade to Windows 11-...  

Q: I cant run the diagnostic scan. It wont complete or I cant access it.
A: If you cannot run the scan, we don't know for sure if the HDD is healthy or not. We will have to continue troubleshooting assuming it is for now. If its healthy, and if the issue is operating system related, I would then reinstall it.
How to install Windows 10:    • How To Install Upgrade Dell to Window...  
How to install Windows 11:    • How To Install Upgrade to Windows 11-...