The virus changes their attributes to
"hidden" and "read only" and may move all memory card content to another hidden
folder, though the size of the disk looks
unchanged, files are still invisible.

Steps to recover hidden files and folders :

This will be a four-step tutorial which
shows how to restore data from lost,
deleted, damaged, corrupted partition. If
you want to recover partitions of an
external drive or disk, please make sure
you connected the drive or disk to the PC on which you installed 7-Data Partition
Recovery.

Step 1. Select the
drive you want to
recover partition
from. 7-Data Partition
Recovery will show
all the drives
connected to the
computer instead of
showing partitions. Please select the
drive which the lost/
deleted partition
belongs to.

Step 2. Start
scanning for lost/
deleted partitions. Please select the
drive you want to
restore partition
from and click
“Next” button to
start a “quick scan” for newly lost
partition. You can
perform a “full
scan” after the
quick scan for more
possible partitions. If no partition is
found after “quick
scan”, 7-Data
Partition Recovery
will automatically
run a “full scan”. After full scan, only
the most possible
partitions will be
displayed. If you
want to display
more options, please click the “Show
More” button

Step 3. Preview
recovered data. After selecting the
lost/deleted
partition, click
“Next” to browse
and preview the files
listed in the original tree structure of the
partition. If you are
recovering photos or
images you may
want to click the
“Thumbnails” to view the photo in
thumbnail instead
of list. You can
double click the
image to preview it
in another window. If you want to
search for a specific
file, you can use the
“Search” button.

Step 4. Save
recovered data. After you decide
which files you want
to recover, please
select them all and
click the “Save”
button. If you want to restore the entire
partition, just select
the partition in the
directory tree.
Choose the path you
want to save these files to and it’s
done. Now you can
see the recovered
files in the
destination folder.

Below is the link for downloading 7data recovery app.
www.datafilehost.com/d/1f0de138

Hope you enjoyed reading the post and was helpful.