Also, if someone could answer my above questions it would be much appreciated!
Not sure.
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So the seed is enough, just if I use electrum?
Yes, with electrum the seed is enough.
Not with other wallets right, because not all have the option of seed?
I cant answer that for all wallets. Some have seeds, some dont.
Should it then be good to save the private keys or just the wallet file?
Usually thats no difference, but this depends on the wallet you are using. E.g. Multibit has a file for all private keys and an extra file for each individual private key.
I am using Electrum as a cold storage solution. But my wallet, is in a folder. And inside the folder, is the wallet file. Isn't electrum password based? Because you need to type a password when you want to transfer bitcoins to another address.
I dont know what "password based" means. Electrum requires a password to unlock the private keys it needs to create a transaction for you.
I want to password protect, or encrypt the whole folder,
Why?
so before I access the folder, I will have to type a password or even two. That would make the security level go up a bit.
What exactly do you think this would protect against? Either someone can access your private keys or not, the rest does not matter. Or at least it does not to me. I dont know you or your surroundings. I can only guess why it would be bad if someone that has hardware access to your machine and knows the passwords needed to boot, unlock the encrypted disk and log into your user account would also know how much bitcoin you have. If you have none of the mentioned security mechanisms allready its better and easier to set them up instead of "protecting" the folder, which is possible but most likely a pain in the ass regarding comfort.
Maybe I am not explaining to well, or I don't understand how it really works. I have my electrum wallet inside a folder named folder A. Inside folder A is another folder created by electrum. In that folder is my wallet file.
I just want to protect that wallet file and the folder it is stored in the best possible way.
But can someone who for example have access to my wallet file, load up the file in another wallet and move my bitcoins to themself? Or do they still need my password I have for electrum?
I want to protect it just in case. And thats why I asked about some encryption or something like axcrypt or folder lock. But will the protection of the folder be necessary? Or how do you suggest to do it?