Sätt lösenord på en mapp

You can create an encrypted VHD to serve as your folder. I believe the following can be completed in the diskmgmt.msc gui, I just prefer using command line.

Command line:

open diskpart from cmd or run by typing: diskpart

create vdisk file='C:\path-to-file.VHD' type=fixed maximum=1000

     note: the maximum is in gigs.

select vdisk file='C:\path-to-file.VHD'

attach vdisk

clean

create partition primary

select partitiion 1

format quick fs=FAT32 label='some-name'

active

assign

Now you can go about encrypting it with bitlocker.