Disable/Block Skype file Transfer

Method 1:

first you should install the newest Version of Skype

Quit the application

Now press the Windows Key and R to open a RUN Windows

type in following command:  gpedit.msc /s  and press ENTER

Right Click Administrative Templates 

>> Add / Remove Templates

>> Add 

>> Locate the .adm file and add it.

Now go : 

Classic Administrative Templates >> Skype >> Phone >> Functionality

Double click Disable file transfer >> Select Enabled >> Apply >> OK.

Try to send a File and you will get a Message like you see here:

Method 2: 

Open Regedit

Migrate to following path :HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Phone

add a new DWORD value having the name DisableFileTransfer. Setting DisableFileTransfer to 1 will disable Skype file transfer.