Dona Sarkar (Sarkar Dona), head of the Windows insider program, has promised to help with the restoration of personal files, which disappeared from the computers of the users after installing Windows updates 10 October 2018 Update.
For this you will need to contact technical support Microsoft. Company «has the tools to return to its original state». In Russia, support for Microsoft is the number 8 (800) 2008001.
Windows 10 upgrade index 1809 caused a small proportion of users deleting personal files. Now the spread of the update is stopped.