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Windows 7: backup encryption key prompt?

08 Apr 2017   #1
HAVOC

Windows 7 Professional 64bit
 
 
backup encryption key prompt?

I just updated the BIOS for my EVGA X99 Classified (using a flash drive). Upon restart I got this prompt. I don't use file encryption. Did Windows see something on the flash drive to make it think it was an encryption key? It was a brand new, never used before flash drive, FAT32 16GB.




Attached Images
backup encryption key prompt?-encrypt.png 
My System SpecsSystem Spec
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08 Apr 2017   #2
Brink

64-bit Windows 10 Pro
 
 

Hello HAVOC,

You might see if using the method in the tutorial below may be able to find any encrypted files.

Find All Encrypted Files in Windows 10 - Windows 10 Security System Tutorials
My System SpecsSystem Spec
08 Apr 2017   #3
HAVOC

Windows 7 Professional 64bit
 
 

Used method one, command prompt.


Attached Images
backup encryption key prompt?-cmd.png 
My System SpecsSystem Spec
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08 Apr 2017   #4
Brink

64-bit Windows 10 Pro
 
 

Well, no encrypted files found.

If you like, you could delete the certificate to stop getting the backup message.
My System SpecsSystem Spec
09 Apr 2017   #5
HAVOC

Windows 7 Professional 64bit
 
 

I restarted my computer this morning (had to change fan speeds in the BIOS) and I got the message again. How do I delete the certificate?
My System SpecsSystem Spec
09 Apr 2017   #6
HAVOC

Windows 7 Professional 64bit
 
 

I found this. Do I just click the red X to delete it?


Attached Thumbnails
backup encryption key prompt?-cert.png  
My System SpecsSystem Spec
09 Apr 2017   #7
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

It would appear to me that when the certificate was created it used a function/entry(ies) in the BIOS to generate the Certificate, now you have altered the BIOS this link is incorrect and it is now just trying to backup the updated data in the certificate,

You can do whatever you like with the file - Windows may just recreate it, or accept it's deletion, (un-likely) - so I would follow the prompts to either back-up the key (in case you ever do use encryption ), or state never backup if you decide this is best. (just wait until you next re-boot)

I can vaguely recall this happening quite regularly on Windows 7, when I used it, and If I searched my data stores I'm sure I would find several backups of various keys
My System SpecsSystem Spec
09 Apr 2017   #8
HAVOC

Windows 7 Professional 64bit
 
 

Quote   Quote: Originally Posted by Barman58 View Post
It would appear to me that when the certificate was created it used a function/entry(ies) in the BIOS to generate the Certificate
I never created a certificate. I just tried to backup the key to see what this encryption was about. I get as far as this.


Attached Images
backup encryption key prompt?-export.png 
My System SpecsSystem Spec
09 Apr 2017   #9
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

The certificate is built as a part of the initial Win7 set-up process - You do not need to do anything

From where you are in the image - use the Browse function to navigate to where you want to save the key backup file - Give it a name and save as you would any other file. The option of naming the file yourself is for those who are saving multiple Key File backups to the same storage location so you can match the file to the system
My System SpecsSystem Spec
09 Apr 2017   #10
HAVOC

Windows 7 Professional 64bit
 
 

I think I found out what might have caused it. I have the GEGeek_Toolkit on my computer. I recently updated it and saved it to one of my new 16GB flash drives. While saving it said something about some password thing is missing.

I tried "cipher /c /n" with the flash drive inserted and no files are found.
My System SpecsSystem Spec
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 backup encryption key prompt?




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