How can I install Windows on a pen drive for direct boot without a hard disk? I don’t want to use any hard disk in my PC.
it is a bit tecky but I remember long ago I have a program that does all this or better I use to have a cd-rom that does all automatically but here I let you with a page. And believe me it is posible since I have done it so with and all dell notebook. http://www.ngine.de/article/id/8 I remember that the cd program does all this.
Here is a guide how to install Windows on a USB Flash Drive.
From what I know there is no direct approach since there are measurements in place to prevent it within Windows Setup (e.g. when booting from the DVD).
Keep in mind that Flash Drives only have a limited amount of read-write-operations before they start deteriorating [both in speed and space duo to failing blocks].
Windows has a lot of I/O operations on the drive they are installed on duo to paging, temporary files, logs etc... You will definitely want to use a high-quality flash drive you are willing to destroy
If you are using the Flash Drive in a productive environments or save important files on it you will want to backup at least once a week.
Sorry, I forgot [and missed] to add ~ instead of setting up a virtual disk use the entire thumb drive as the installation HDD ~ that should do the trick.