This guide will help resolve “No block source available” and “out of sync” Windows core wallet errors.
To begin, make sure you have the latest wallet version.
In this article, we will work on Windows (any version apply)
Images displayed are showing the previous wallet, version 126.96.36.199. The procedure is THE SAME for the latest version
Before proceeding you MUST backup your wallet.dat file that you can find in you AppData folder. You can even wipe clean all the files in Noir folder inside AppData, but PLEASE backup your wallet file somewhere safe first.
Download the latest wallet version, in this case the Windows version here
VERY IMPORTANT: before extracting the .zip file, you MUST whitelist the file on your Firewall/Antivirus that runs on your system. If you don’t do so, you won’t be able to fully extract the .zip file and the destination folder will be empty.
For Windows 10 users: you might want to follow this guideline regarding Windows Defender
Once unzipped, you will see a single file, in this case named noir_core.exe
Now we will use Windows Command line prompt (cmd) to navigate to the folder where the wallet .exe file is and launch it from there with the additional argument “-reindex” (without quotes).
Click on the “start” icon on the bottom left or hit the “Windows ” key on the keyboard. A search bar will appear and next type cmd, press Enter.
Windows Command prompt will open
Now navigate to the Wallet Folder and find the previously renamed .exe file
Issue the following command:
The wallet will launch and display the block reindex count.
Once the wallet has finished reindexing, it will add peers and begin syncing.