Sometimes it is possible that PC- the personal property to keep so much to security and privacy your, so that it won't allow you to access it either hidden files and folders.

This problem (like many others) can be solved from Registry Editor.
So, if you have activated OPTION Show hidden files/folders, but this has automatically disabled in second 2, open the register editor (Start Menu->Run->touch regedit->Enter) and follows the way HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrent VersionExplorerAdvanced.

In the panel on the right, modify the input value (DWORD) Hidden in the following:
1 – for to see the files hidden
2 – for not to see the files hidden

And voila! Hidden files will no longer be hidden. ;)
Note: we recommend performing a back-up before modifying the registries.