Why Can't I Use The Euro (€) Symbol In My Ssd Password? -

If you find a way to bypass these warnings and set the password anyway, you face several risks: How Do I Remove a BIOS or UEFI Password?

This is the same reason some routers, IoT devices, and embedded systems reject emojis or accented letters in Wi-Fi passwords.

Here is why that breaks the Euro symbol:

Even if you successfully set a password with a "€" in Windows, the drive's internal controller might save it as a "garbage" character or truncate it. When you later try to enter it at the BIOS/UEFI boot screen to unlock the drive, the pre-boot environment likely won't even have the keyboard driver necessary to produce that specific symbol. The Danger of Using Non-Standard Symbols

Enabling ATA Security on a Self-Encrypting SSD | zeitgeist.se

Most SSDs use the or TCG Opal standards to handle passwords. These standards were designed to work in the pre-boot environment (before Windows or macOS loads), which often lacks the complex "font" or "encoding" support needed to understand symbols like €, £, or emojis. 2. Scancode Mismatches

You can use the euro symbol in an (Windows, macOS, Linux) if the input method supports UTF-8. But for an SSD hardware password (often called ATA Security, OPAL, or DriveLock password entered before the OS boots), the character set is radically limited — usually to ASCII 32–126 (no Unicode, no €).

The symbol is restricted in SSD passwords because hardware-level security protocols usually only support the standard ASCII character set .