I have done every step like I saw on YouTube tutorials. But, instead of login page, my laptop opened boot menu of linux zorin, and windows boot manager isn't working with a blue error screen and zorin os isn't also working with the error page in the image.
Acer aspire 3,
When installing, I chose something else and chose my C drive for formatting.
hello and welcome here,
I guess BusyBox is kind of corrupted problem with your disk and maybe how you managed partitions !?
Try to find out if anyone had the problem with Zorin from this forum and then, because Zorin is based on Ubuntu, you can try from https://discourse.ubuntu.com/ if you don't have answer yet from here.
Of course, manage this problem with caution !!!
Save what you have to / can in case from a liveusb to a external disk.
No need if this is a new install
We also need clarity. Were you attempting to dual-boot Windows with Zorin? Or were you attempting to replace Windows with Zorin? Had you run 'Try Zorin' to make sure your Acer Aspire worked without any issues before installing?
You state that you wanted to install Zorin to C:, GNU/Linux cannot be installed to an NTFS partition.
If the intention was to dual-boot, you first have to use Windows Disk Management to shrink C:\ to make room for Zorin to be installed.
If only Zorin is to be installed, then you need to erase the drive.
As @SOZA has stated in his post, run 'Try Zorin' from the installation media to recover any critical data from Windows before going any further.
Do you have a Windows Repair Disc/USB? I would run that after you have backed up all critical Data using Zorin in live mode.