Cryptocurrency wallets normally store your wallet keys in a file on any of your hard drives. If at any situation you can’t access your bitcoins, don’t give up your hope without trying any bitcoin wallet recovery , consider some of these ideas to recover your wallet if you are running a full node start it up for a few minutes each day just to confirm it is in sync or just leave it running. Some applications take some long time to bring up to date your wallet balance, so need to wait for more time to complete the synching process with the bitcoin wallet’s network, if you haven’t run bitcoin wallet for a long time then it may take some time to finish its synching because it downloads the latest blocks. If you keep bitcoin wallet sync by making it run for a little every day then it starts to over-perform remaining wallets that don’t use a full node for a long time.
If you accidentally erased your bitcoin wallet there are some chances of recovering it again when you delete the wallet recycle bin in windows but if you empty your trash folder, your files are likely saved on your hard drive. The actual deletion is probably a resource-intensive fully deleting your data on a hard drive takes perpetuity. So your operating system normally removes the file’s MFT reference and finally overwrite it if another file wants space. This means is that one has to do scan for all the erased files, and probably select through gibberish till you discover all the lost bitcoins, it is known as a file recovery process.
If you are using the bitcoin core wallet file you need to restore is wallet.dat, when you back up your private key you can find that back and you can restore all your lost bitcoins in only a few minutes, When you install Bitcoin core in the computer, just copy your wallet.dat file back in the ‘bitcoin’, this wallet may be hidden ‘Appdata’ directory if it is windows.
There is a recovery app called Recuva created by piriform, it scans all your hard drive to find all the files which are deleted previously and provide access to you to copy and restore them safely. These type of undeletion tools are useful for you when you delete your files accidentally or a formatted hard disk, and when you use Recuva first select the ‘All files’ option and when your ‘All files’ option open select the drive that the wallet of the private key is on. If you wish you can start the option without selecting the deep clean or scan option, but if you are unable to find your file then try it by selecting the deep scan option, just take your time and search for your file your chances of restoring your file is better than they seem to be and to back up your bitcoin core wallet, open the file option and select ‘backup wallet’ and save the file to secure in which location your files will be safe. It may be a new USB drive or a new CD that is not used for any other purpose and after saving your file in it store it privately.