For everyone that has had the AV problem with previous release,  before you update to latest version be sure to save your wallet.der in a safe location (out of Bismuth folder) and manually remove the whole Bismuth folder from your PC (right click, delete) and then proceed to install the latest version so a NEW bismuth folder is created , the previous one has been changed to "read only" by your anti virus and if you just install without removing the Bismuth folder you will have a black screen and also errors because nothing can be wrote to the previous Bismuth folder. Please restart your PC and when your PC has restated replace your wallet.der into the NEW bismuth folder and then run node.exe or wallet.exe and everything should be back to normal, if not please contact us in the Support channel in our Discord.

Regards

Bismuth Foundation