1. How to show hidden files/folders
Open File Explorer and press ALT to show the menu
Go to Tools > Folder Optsions

2. Start RDP Client
command line: mstsc

3. File System Checking
fcs /scannow

System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.

SMB Ports
https://www.varonis.com/blog/smb-port/