Windows 10: Problems When I turn on my PC

Do you have any important files on your computer? If you do and you are able to get to them, save them somewhere (free cloud services online are great for this!).

Consider clean installing the OS again (wipes all data and programs, everything). This will give your OS a fresh start, and often fixes the problems. Afterwards, install the drivers that it needs (ask if you aren't sure how).

To clean install (Product Key not required if you had Windows 10 installed and activated already): Windows 10 - Clean Install - Windows 10 Forums

 

OK thank you I'll try this. Thanks for your help

 

If I was in this situation I would remove the battery for over 5 minutes maybe 10 just to be safe, this will reset your bios including bios passwords and settings, after waiting for five minutes or so I would then connect the battery, close the system up and power it up, enter your bios and set the correct time/date, don't fiddle around with any other bios settings just yet, after your system has booted up make sure the time and date is synced with the internet, now check for any updates via windows update, if all has worked well you can now change your bios settings.

 

The cmos battery will drain regardless of being plugged in or not