Insert the Pen drive in Your PC
Now Open the Run Dialog box and Type 'compmgmt.msc' and click OK button.
Now Open the Run Dialog box and Type 'compmgmt.msc' and click OK button.
Select 'Disk Management'in left panel of computer management.
Right click your pen drive and select 'Change Drive Letter and Paths'
Click the change button and Change DriveLetter Select A and click OK button.Now your pen drive act like FloppyDisk.
Open Run Dialog box type syskey
Click on Update
Select 'Store Startup Key on Floppy Disk' and click OK button.
Finally, when you start your PC you need to insert pendrive. Without Pendrive you will not able to access your computer. So keep this Pendrive as PC password Protected safe.
