Multisig account private key missing

[cw135308]

So my friend and I have a XeM cryptocurrency wallet. In 2016 two accounts were combined to make this Wallet. Combining them made it a multisig account with 4 co-signers. 3 are needed to make transactions with the coin. In 2016 one computer crashed and we lost 2 co-signers. Tried to restore hard drive and recover files but couldn’t find it. Don’t know if it was overwritten on hard drive. So basically we need recovery from thehard drive that might have been overwritten or somehow hack the account that we have already have 2 of 4 total co-signers. I  can log into this wallet and stare at the 4.5mil of xem but i’m unable to make any transactions b/c It was converted to the multisig account without 3 of 4 keys.  Is there any way to get into this account and make transactions, or add another account to make another cosigner available?  or are all the coins in the account lost forever? trying to find any solution to make this work!

[Charles-Tim]

So far it is 3 cosigners, then 3 private keys are needed to sign transactions from the multisig wallet, you can not add another wallet to make it work, it is not even possible. All you need to do is to find all possible means to get 1 more private key back to make it three.

It is a good idea to backup offline, on paper, and have like three copies in different locations. Depending on your device can fail you because the backup may not be accessible ever again if the device is damaged.