I have an entry that simply says "Program" with no file location or details about what made this entry into my Startup items in Task Manager. I had followed the advice in another superuser question about removing entries from this, but to no avail. After looking at all the registry paths mentioned in 548832 I was unable to find any keys that could correspond to this blank program. However I was able to find the other Startup entries in those registry locations. I do not have the ability to install a registry cleaner so any fix must be made manually. I am running Windows 10 Version 10.0.19043 Build 19043
Task Manager on the Startup Tab showing an entry named Program, and the context menu for it.