All user settings gone after system restart

The cause is usually that your user profile has become corrupted, so windows has created the temp profile to enable you to log into windows


Please start with a chkdsk /r from a cmd prompt on the prompt C:\Windows. This must be run from a cmd prompt with admin rights which is not simply your account but OPEN the cmd prompt with admin rights please


Follow that please with a free download of Malwarebytes and run a quick scan
https://www.malwarebytes.org/free/


please ensure you download the free version and not the 14 day free trial. Allow it to clean anything it finds


Reboot then check again.


If it is still no good uninstall AVG, checking you have the means to reinstall and try again
Use the programs and features and then the AVG uninstall tool


http://www.avg.com/gb-en/utilities



and then download MSE
http://www.microsoft.com/en-gb/secur...urity/mse.aspx


install that, update, run a quick scan reboot and check again


NOTE please do not delete Temp Don