Try this
1/ Select the Boot menu in the Aptio setup utility, select 'Launch CSM' and change to enable
2/ Select the Security menu n the Aptio setup utility, select '
secure Boot Control' and change to disable
3/ Select
Save & Exit and press 'yes'
4/ Hold down the
power button until the unit switches power off completely
5/ Switch back on and continually press the F9 button for about ten seconds; this should now allow the unit to boot up into the Windows Recovery menu
6/ Select 'Advanced Start Up' and wait until the recovery menu appears
7/ Select ' Advanced Options'
8/ Select 'System Restore' and select a date prior to when the problem occured
System Restore worked perfectly for me; good luck
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