When you encounter a sign-in error after restarting your PC, it can be frustrating. Here are some steps you can take to address this issue: 1. Check Internet Connection: - Ensure that your system is connected to the internet. Sometimes, sign-in errors occur due to network connectivity issues. 2. Verify Account Credentials: - Double-check the username and password you are using to sign in. Ensure that you are entering the correct login credentials. 3. Restart Your PC: - Try restarting your PC again to see if the issue resolves itself upon a fresh reboot. 4. Use Safe Mode: - Boot into Safe Mode by restarting your PC and repeatedly pressing the F8 key. In Safe Mode, you can troubleshoot potential driver or software...