There is no way for the Ethereum Foundation to reset your password, but some enterprising community members have developed tools to assist with the password recovery process.

If you are familiar with Python (or willing to learn some basics), the best tool so far is a particular version of pyethrecover. Let us suppose that you know part of your password, but can't remember all of it (or perhaps you put in a typo during the presale or when you created the wallet). You can easily input the parts of the password you remember, and then add possible characters to check for those parts of the password you've forgotten. The program will then check all permutations of that possible password space to see if any combination unlocks your wallet. This is a lot easier than manually typing every possibility.

I've also saved a screen shot of the original presale page in case that helps jog your memory.

About the keystore file and specifications:

It is called: UTC JSON Keystore File

More info: https://theethereum.wiki/w/index.php/Accounts,_Addresses,_Public_And_Private_Keys,_And_Tokens

I found my JSON file:

1. I put the HDD to another Linux machine
2. installed testdisk, listed my drives (the lost key was at /dev/sdc)
3. Then with:

strings /dev/sdc | grep ea52e36ce9481bde98904d4307ba90cbc6cb8ac4

I got a mass amount of data, where I found a JSON like text:

UTC--2017-06-27T23-00-32.157422930Z--ea52e36ce9481bde98904d4307ba90cbc6cb8ac4

followed with the content of key file.

The ea52e36ce9481bde98904d4307ba90cbc6cb8ac4 is my account.