Before using Ledger on a temporary computer, limit the task to environment review: app entry, USB state, device screen, and final disconnect record. Keeping the task narrow prevents a temporary setup from becoming a broader device or account-management session.

Confirm the Ledger Wallet entry first
If Ledger Wallet is not already installed in a known app environment, begin with the Ledger Wallet download and installation guide. App entry should be understood before the device is connected.
Review USB and system permission
Use one cable and one port at a time. For the detailed USB path, compare with the USB connection troubleshooting guide. For the normal desktop sequence, use connecting Ledger to a computer.
Keep the device screen in view
The Ledger Wallet page and the device screen should describe the same task. If the app cannot open the device, the device-opening checklist gives a focused way to separate permission, app page, and screen prompt.
Close with a disconnect record
After the task, disconnect the device and note the computer used, app version if needed, device prompt, and final page state. For a compact routine, compare with the daily three-step Ledger check.