Show Super hidden files:

Even if you turn on show hidden files in Windows Explorer some files will remain hidden. These files are super hidden.

Set the registry value below to 1.

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced] "SuperHidden" = 1

Then reboot.

Delete a System or Locked File

1. First you need to take ownership of the file. Run takeown /f "path and file name" to take ownership from a command prompt.
2. Next, you need to give your account full control permissions on the file. Run cacls "path and file name" /G <your username>:F to get full control from a command prompt.

Find out what processes are being used the most

1. Click on the Start Button and type Reliability. Click on the Reliability and Performance Monitor shortcut.
2. On the main screen click on the Disk section down arrow to see a list of all processes and the files they are writing or reading from your drives.
3. Click on the Read or Write headings to sort all disk operations to identify which process and file is currently using the disk the most.

Will post more later.