when I log into Windows 10 my whole screen is black there's no icons but I can click ctrl-alt-delete bring up task manager that works but I can't open the internet or nothing can someone tell me how to fix this
You didn't provide much information, like what machine you're using or which version of Windows 10 you're running, but I'm going to assume this is the problem.
■ Addresses an issue that caused the system to start up to a black screen. This issue occurs because previous updates to the Spring Creators Update were incompatible with specific versions of PC tune-up utilities after installation.