Hepi Hepi
Restore Clipboard in SEB

Safe Exam Browser

Restore Clipboard in SEB

How Hepi restores copy, paste, and Ctrl+C/V inside Safe Exam Browser sessions.

Why copy and paste stop working in SEB

Safe Exam Browser blocks clipboard access through three independent mechanisms: a timer that wipes copied content every 50ms, a shortcut blocker that intercepts Ctrl+C, Ctrl+V, and Ctrl+X, and — in isolated desktop sessions — a browser-level intercept that captures copy and paste events before they reach the system.

Hepi’s Restore Clipboard (Ctrl+C/V) feature disables all three, restoring normal copy and paste behavior without interrupting the SEB session.

Info
This is a Premium feature and requires Hepi to be running with Administrator privileges.

What gets restored

SEB mechanismWhat SEB doesAfter Hepi disables it
Clipboard timerWipes copied content every 50msDisabled — copied content persists
Shortcut blockerBlocks Ctrl+C / Ctrl+V / Ctrl+XAll shortcuts work normally
Browser interceptBlocks copy/paste in isolated modeDisabled — native copy/paste restored

How to enable it

  1. Open Settings → Privacy → Safe Exam Browser.
  2. Toggle on Restore Clipboard (Ctrl+C/V).
  3. Start SEB. Hepi detects when SEB is fully loaded and applies the changes automatically.
Tip
If you're using SEB in isolated desktop mode, reload the SEB browser page after enabling this feature. The browser intercept fix takes effect on the next page load.

SEB running modes

This feature works in both SEB running modes, but the browser intercept fix only applies when SEB creates a separate desktop environment.

  • Normal desktop mode — the clipboard timer and shortcut blocker are disabled. Ctrl+C/V work immediately.
  • Isolated desktop mode — all three mechanisms are disabled. Reload the page for the browser intercept fix to take effect.

See Understand SEB Running Modes for the difference between these modes.

Restore Clipboard SEB

Last updated: 2026-05-17

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