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Windows 7: How to decrypt files

28 Dec 2019   #1
386DX

Win 7 Ultimate x64
 
 
How to decrypt files

Hi. I ran a full backup on files from my C;\ HDD to E:\SSD. About 5 GB out of 25GB were not copied because the files were encrypted. I'm an Administrator. It may be that when they were encrypted, I logged in under a different (old) user. Do I need to log in as the old user, make my current user a member of the Administrators Group, and try again? I have other permission issues I need to resolve ASAP, but I'll start here. Thanks!


My System SpecsSystem Spec
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28 Dec 2019   #2
Brink

64-bit Windows 10 Pro
 
 

Hello,

You would need to log in to the original account that encrypted the files to be able to easily decrypt them.

Encrypt or Decrypt a Folder or File | Vista Forums

Otherwise, you would need to import the encryption certificate to your account to be able to decrypt them.

Encrypted File System (EFS) Certificate Backup | Vista Forums

Encrypted File System (EFS) Certificate Restore | Vista Forums
My System SpecsSystem Spec
28 Dec 2019   #3
386DX

Win 7 Ultimate x64
 
 

Thanks. This may be related, but I'm having trouble ensuring if I backed up all files.

I’m using Backup Maker. I backed up files from C:\ HDD to E:\ SSD.

C:\ 25.4GB, 25,188 files, 2711 folders
E:\ 19.5GB, 23,647 files, 2711 folders (all in 1 .zip file)

Do you think these differences are due to the encryption issue?
My System SpecsSystem Spec
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28 Dec 2019   #4
Brink

64-bit Windows 10 Pro
 
 

Yeah, if the encrypted files were not included in the backup, that would account for the smaller file size and less number of files for "E".
My System SpecsSystem Spec
28 Dec 2019   #5
386DX

Win 7 Ultimate x64
 
 

Makes sense. The backup set did include the encrypted files, but it sounds like I couldn't back them up (copy them) because they were encrypted.
My System SpecsSystem Spec
31 Dec 2019   #6
386DX

Win 7 Ultimate x64
 
 

I tried your suggestions trying to decrypt files , but keep getting "Access Denied". There aren't any .pfx files on my HDD, may have been deleted along with an old profile. Are there any options you can think of to save these files? I"m trying to decrypt and back up to an SSD. I can't open, copy or move. Thanks.
My System SpecsSystem Spec
31 Dec 2019   #7
Brink

64-bit Windows 10 Pro
 
 

It's going to be about impossible to recover encrypted files without the security key.

If the data is really needed, you could try a professional encryption data recovery company or program, but it won't be cheap.
My System SpecsSystem Spec
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31 Dec 2019   #8
386DX

Win 7 Ultimate x64
 
 

What's interesting is that I can open some of the green encrypted files and others I can't.
My System SpecsSystem Spec
01 Jan 2020   #9
RolandJS

Windows 7 Professional 64-bit
 
 

Have you already ltried logging into that older account that encrypted the files?
My System SpecsSystem Spec
01 Jan 2020   #10
386DX

Win 7 Ultimate x64
 
 

Unfortunately I deleted the user profile.
My System SpecsSystem Spec
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 How to decrypt files




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