Found Old Multibit Wallet

[Marvin2024]

Hello, I found old wallets on my hard drive. They have different formats. Some of them were inserted into Electrum. Others weren't. I created all the wallets without passwords earlier. Can you tell me how to insert them all so that I can check them and where?
https://ibb.co/FJsMLj7
https://ibb.co/9wR8HSQ
https://ibb.co/fXH2RvD

[nc50lc]

Hello, I found old wallets on my hard drive. They have different formats. Some of them were inserted into Electrum. Others weren't. I created all the wallets without passwords earlier. Can you tell me how to insert them all so that I can check them and where?

I can't see any Electrum-related files in the screenshot, most look like from MultiBit.
However, that wallet is already abandoned by the developers so all you can do is to try to export your keys from the wallets.

Try this board to check if someone reputable who is familiar with MultiBit can give you pointers: /index.php?board=99.0
Or read some existing threads if you can find a solution to your issue.

AFAIK, those "Multibit-<timestamp>.key" files in your flash drive should show your private key(s) once opened with a text editor if those aren't encrypted key exports.

[ABCbits]

Looking at all screenshot you provide, none of those files seems to be created by Electrum. Electrum create wallet file without extension while very old version of Electrum create file with .dat extension which can be opened with notepad.

Aside from @nc50lc suggestion, you shold try whether your HDD also contain real copy of MultiBit or MultiBit HD installer. Otherwise, you need to download MultiBit HD installer from https://github.com/Multibit-Legacy/multibit-hd. As for Multibit (not HD ones), you either need to find installer from internet (which could contain malicious code or malware) or compile it yourself using source-code from https://github.com/Multibit-Legacy/multibit which could be very challenging.

[Marvin2024]

Looking at all screenshot you provide, none of those files seems to be created by Electrum. Electrum create wallet file without extension while very old version of Electrum create file with .dat extension which can be opened with notepad.

Aside from @nc50lc suggestion, you shold try whether your HDD also contain real copy of MultiBit or MultiBit HD installer. Otherwise, you need to download MultiBit HD installer from https://github.com/Multibit-Legacy/multibit-hd. As for Multibit (not HD ones), you either need to find installer from internet (which could contain malicious code or malware) or compile it yourself using source-code from https://github.com/Multibit-Legacy/multibit which could be very challenging.

I didn't express myself correctly, I know all these wallets from Multibit 100%) here's what I found
https://ibb.co/N77KCxW
https://ibb.co/qnM7bQD

[ABCbits]

--snip--
https://ibb.co/qnM7bQD

File multibit-hd-windows-x64-0.14 and multibit-0.5.17-windows-setup seems to be the installer for Multibit HD and Multibit. If you're sure those are real/legit installer file and your device is clean (not infected by virus or malware), you could try install those, load the wallet file, see shown address and use block explorer (such as https://mempool.space/) to check whether any of those address contain any Bitcoin.

[LoyceV]

See [overview] Recover Bitcoin from any old storage format, and CTRL-F for "multibit". This shows you everything I've collected over the years on Multibit recovery.

[BitMaxz]

According to all images that you posted, all wallets have .wallet extension, which is created from Multibit Classic. For multibit HD the file should look like this "mbhd.wallet.aes".

Their github page is still alive, and there's a guide on how to extract all private keys from .wallet file you just need the nodeJS to export the private keys from the .wallet file.

Check this Github page: https://github.com/Multibit-Legacy/read-multibit-wallet-file