Windows 10 Bluetooth keyboard enter pin

Windows 10 Bluetooth keyboard shows a text entry box for pin.














Enter 0000, then type 0000 on your keyboard and enter.

(Any 4 numbers will do, Bluetooth keyboards come with default 0000 or 1234)

Restart Windows 10 in recovery mode by command line

shutdown /r /o /f /t 0

Windows File system symbolic link

Create symbolic link:

1. Open command prompt (as administrator may be needed)
2. Use the mklink command, where Link is the link to create and Target is the file\directory to link to:

mklink Link Target

i.e. mklink c:\myfile1 c:\myfile2

/D for directory.
/H for hard link (when you want the link to be seen exactly as if its the target)
/J for hard link directory.