Windows 8.1 encrypts files by default.
However, there’s a problem — if you forget your password and are unable to log in, you’d also be unable to recover your files. This is likely why encryption is only enabled when a user logs in with a Microsoft account (or connects to a domain). Microsoft holds a recovery key, so you can gain access to your files by going through a recovery process. As long as you’re able to authenticate using your Microsoft account credentials — for example, by receiving an SMS message on the cell phone number connected to your Microsoft account — you’ll be able to recover your encrypted data.
With Windows 8.1, it’s more important than ever to configure your Microsoft account’s security settings and recovery methods so you’ll be able to recover your files if you ever get locked out of your Microsoft account.
By putting all that garbage info into the Windows Live Account then forgetting it now makes it impossible to retrieve your encryption key. What may save you is if the normal account which is still on the computer was not encrypted. You said you chose local account with no password. Did you setup a password during the 8.1 update on the Live Account? If you did the files are encrypted. Was there more than one account on the computer when you updated or only the single account?
Here are the options.
It may be safer to use your link and instead of giving your account a new password, you could activate the hidden Administrator Account using this command.
net user administrator /active:yes
Reboot and you should be able to access this account to change any local account password
You could download a small linux distro like Puppy linux. Burn the iso file and then recover your files. You would need to disable SecureBoot and FastBoot in BIOS. You should also make sure your CD/DVD is the first boot device in the Boot section of the BIOS.
You can burn the iso file by double clicking it in Windows 7 or by using Imgburn if using an XP computer. Boot the Puppy Disk and copy your files over to an external drive. Here is a guide on transferring files using Puppy. Do not do a disk check as outlined on page 2. You should see your hard drive in the lower left desktop of Puppy. Click once on it and a green dot will be placed on the icon. A File Manager Window will open. Attach a USB flash or external drive. A USB icon will appear on the desktop. Click once and another File Manager Window will open. Then you can drag and drop between windows. You can select multiple files and folders by holding the Ctrl key and left clicking the mouse. Use the copy option and not the Move option.
Another option would be to remove the hard drive and attach it to another computer. If you have never done this before, I would try the Puppy option. After using Puppy, then you can try the method in your link.
Edit: If you give Microsoft the garbage name of the Live Account, and the date it was set up that may also help.
Edited by JohnC_21, 28 June 2014 - 08:15 AM.