FIX FOR FOLDER DISAPPEARING OR INVINCIBLE PROBLEM IN WINDOWS

This is an another very irritating problem in windows 10,that very large sized folders become disappear from the local disk and they are not deleted,they are still present in that stored location but we cannot access it.
THE CAUSE:
1.HARD DISK PROBLEMS
2.MEMORY MANAGEMENT ERROR
3.BY SOME UN IDENTIFIED VIRUS

SOLUTION:
I HAVE SEARCHED INTERNET FOR SOLUTIONS AND SOME SOLUTIONS THAT I FOUND FROM DIFFERENT WEBSITES ARE LISTED BELOW,BUT THESE SOLUTIONS NOT WORKED FOR ME:
1.FROM FOLDER OPTIONS OR FILE EXPLORER IN WINDOWS 10 CHANGE SETTINGS FOR FOLDER VIEW OPTIONS THAT MEANS MAKE HIDDEN FILES VISIBLE

2.USING CMD TYPE THIS COMMAND     TREE C:
THEN IT WILL ENLIST THE FILES IN THAT LOCAL DISK

WORKING SOLUTION

ABOVE SOLUTIONS NOT WORKED FOR ME.SO I DEVELOPED ANOTHER SOLUTION THAT CAN RECOVER THE FILES EVEN IF THAT IS NOT DETECTED BY CMD AND HIDDEN FILE VISIBLE OPTION

1.DOWNLOAD CCLEANER OR ADVANCED SYSTEM CARE OR ANY OTHER SOFTWARES THAT ANALYSE LOCAL DISK AND VISIBLE THE LARGE FILES

2.USING ANY OF THESE SOFTWARES ANALYSE THE LOCAL DISK WHERE THE FOLDER DISAPPEARED.

3.NOW IT WILL LIST THE LARGE FILES TO SMALL ONES IN DESCENDING ORDER

4.SEARCH THE ANY FILE THAT PRESENT IN THE FOLDER

5.AFTER DISCOVERING THE FILE OPEN THAT FOLDER USING THAT SOFTWARE

6.NOW THE FOLDER HAVE SOME ANOTHER NAME LIKE DIREC001 ETC

7.MAKE ANOTHER FOLDER IN ANOTHER LOCAL DISK AND COPY THESE FILES TO THAT FOLDER THEN DELETE PREVIOUS FILES TO FREE SOME DISK SPACE.