Is your Mac causing problems in starting up and you are not able to complete your day to day task? You may need to check some essentials like the battery backup, the power connection (whether the laptop has been plugged to the power cord or not), etc. If by confirming these, the issue is not resolved, then you must get in touch with the techies at {removed per forum guidelines} or read the following steps:
- Hold the power key for 10 seconds to switch it off, then turn it on again
- Check the display once
- See whether any hard drive is corrupted or not
- Uninstall and then reinstall Mac OS
