Danger: a real brand never does it
"Press Windows + R and paste this command": a fake offer
A payment or offer document that will not display and asks you to copy a command into PowerShell or the terminal: a known trap, never a brand's practice.
What it looks like
The payment document does not display? Press Windows + R, paste the command below and confirm to install the viewer.
Why it is a sign
The command installs a program that reads your passwords and your sessions. The message imitates an error page so that you do the move yourself, which gets around every protection. No document needs a command to open.
What a real brand does
A real brand sends a PDF, a link to a shared document or an invoice in a known tool. If a file does not open, it sends it another way.
What to do
Copy nothing. If you already ran the command, change your passwords from another device, sign out every device of your Google account and have the computer checked.