Could You maybe share some Infos:
- Hardware Specs
- Is this a new Issue or does this happen since You have Zorin installed?
- Are You having a Dual Boot System (Zorin with another OS)?
- Is Secure Boot and Fast Boot in BIOS turned off?
It happens after upgrade all upgradable in Zorin OS. I have two ssd and dual boot . Zorin is on Samsung EVo128 and win7 on ADATA 256. Booting from BIOS by F12 key. There is no GRUB. Independent installation . Sorry for my english.
This is your processor gpu.
On screen it looks like your processor gpu is died and you get artefacts. I could be wrong but this is what I seeing. Did you checked another distribution to check if you have problem only on Zorin?
As your Windowing System reports X11, back in the Ubuntu 16.04 days I used to create the following X11 .conf file to fix issues with screen tearing (more video playback sync related) issues on Intel i5 4200U HD 4400 and also Celeron 1037U 3rd Gen Core CPUs at their Ivy Bridge GT1 GPU.
cat << EOF | sudo tee /usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
Option "DRI" "3"
#Option "SwapbuffersWait" "true"
Option "AccelMethod" "SNA"
#Option "AccelMethod" "UXA"
# Prevent screen blackout if TV/Monitor is off
Option "HotPlug" "false"
# Force Connected Device
# Check devices with - xrandr | grep " connected" | awk '{print $1}'
#Option "ConnectedMonitor" "DP-1"
#Option "UseDisplayDevice" "DP-1"
EndSection
EOF
Reboot once applied! Not sure it'll fix your issue, but not harm trying.
With those old onboard Intel graphics, I also used to get marginally better performance installing drivers from oibaf PPA. ** Please read the details within the link before applying these changes! **
sudo add-apt-repository ppa:oibaf/graphics-drivers
sudo apt update
Yeah older drivers could be better support his integrated cpu.
Propably older kernel could be better support his a computer.
Zorin on webside writing for the modern PC.
Then I don't know if this could be the drivers are not included in kernel.
GPU works fine on win7 and works normaly in Zorin after boot light-show.
Then maybe Zorin 17.2 have greater demands.
Hard to sayed.
It is fresh installation?
Then maybe download new ISO and creating new image installation?
Did you check hash and have you got disabled security boot in bios?
Sorry for my questions just only want help.
You sayed you have dual boot. I know windows and linux have problems with that.
So, when You installed it: What Option did You choose in the Installer? Erase disk? Something else? Install Zorin alongside ...?
Everything works fine after this strange screen ,Zorin 17.2 and Windows7. No problems at all. It is my fault because i upgraded all including kernels in Zorin and this appears after upgrading. My advice for newbies:NEVER! update kernel if it works.NEVER EVER!
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I am assuming you accepted a kernel update offered by Software Updater as an OS Update.
Did you try booting your previous kernel via the grub menu item "Advanced Options for Zorin"?
lol i always update a kernel as soon as my system says its available , and i NEVER NEVER EVER had an issue 
Yes and it is same ,first goes crazy graphic and then normally starts Zorin and everything works fine. My solution is to ignore stupid graphic (close my eyes) and wait few seconds for Zorin. I'm to old to fight with computer. Thanks everybody for help.
Update and Upgrade is not same thing.
i'm not understanding you lol.
you say you UPGRADED all including kernels , then tell people not to UPDATE kernels .
do you mean you UPGRADED your zorin release (with kernel included obviously)?
staying on old kernels just cause it still works is not really progressive eh ?
new kernels brings more features and more importantly , fixes and security.
i know generally one doesn't pounce on a new kernel as soon as you find it available ,one should wait awhile till little nicks are sorted out .
but so far i quess i've been lucky?
PS :
are we still talking about kernels , with that statement ?
During boot you can fallback to the older kernel, i assume you know this ?
True, but new kernels can result in regression and drop support for older hardware/devices, so it is a balancing act for some when accepting updated kernel when offered.