Change your primary passwords, especially if you disabled your firewall to install the software.
If you have already downloaded a "crack" or entered a suspicious serial key, it is highly recommended to: Adobe Photoshop CC 2018 18.0 Serial Key -
Many sites claiming to offer these keys require you to download "activators" (like amtemu or universal patchers). These files are often flagged as Trojans or ransomware by antivirus software because they modify system files. Change your primary passwords, especially if you disabled
They have already been blacklisted by Adobe's activation servers. Change your primary passwords
A free, web-based editor that looks and feels almost exactly like Photoshop. It can open .PSD files and is perfect for quick edits without installing software.
Run a full system scan with or Windows Defender.