Chromebook only works in guest mode and not installing applications

[Chromebookguest]

Just bought my chromebook from hp in the UK and it's only opening and operating in guest mode. Also I cannot download any applications. I am based in Turkey. Please help. 

[Dilip_18]

@Chromebookguest

Welcome to the HP Support Community! I'd like to help!

I see you are experiencing issues with the Chromebook only works in guest mode.

I have a few recommendations so please follow the steps below which solves your problem. 

Extensions should have all been disabled if you did the Browser reset. Many problems show up after a Chrome OS update because the extensions have not been kept updated by their developers

• If you are using a managed device or account from a school or business, contact your administrator for help. See this Help page if you don't know if you are managed. 
• Have you manually changed any flags on the chrome://flags page? If so, click the "Reset all to default" button, restart, and test again.
• Are you in Developer Mode? If so, you may have done something there that caused the issue and you will have to do a Recovery or seek help elsewhere. 
• Shut down and reboot. Make sure you are doing a proper shut down and reboot. Don't just close the lid, do a complete power off shut down. 
• When you first sign in to your profile, do your previous windows and apps reopen automatically? That can cause the problems to return. You are using the "On startup" option in Settings, "Continue where you left off". Consider changing that option to "Open the New Tab page". That provides you a clean startup environment. For now, close all open windows and apps, then shut down and reboot again.
• Do a Hardware Reset​. 
• Sign out of your profile and test in Guest Mode. If the problem goes away, sign back into your profile and then do a Browser Reset. Extensions, themes, and other browser-related issues are taken care of here. A Powerwash will not fix these issues. Manually turning off extensions will also not work - a Browser Reset does more.
• Remove all external devices - USB drives, SD cards, mice, headphones, everything. Turn off Bluetooth. Reboot. Did that change anything?
• If you still have the problem, do a Factory Reset (Powerwash). This is more drastic than a Browser Reset and is only needed of the previous procedures fail to fix the problem. If you have profile issues they will come right back unless you did a Browser Reset first.
• If you still have the problem, do a Recovery. It should only be done after the previous steps fail. This is the only procedure that will reload the Chrome OS system itself, and clean up from developer mode misadventures.

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click on the YES button to reply that the response was helpful and/or to say “Thank You”.

Have a great day!