Cannot move file/folder from H/Disc to pendrive via USB. Why?

[cyw]

Can any one tell me what does the error-message mean : Cannot create
or replace xxxx: the directory or file cannot be created.

I tried putting the pendrive in another USB port and it is the same result.
However, there is no problem of moving the same file/folder with another
pendrive in the same port.

Have opened the Device Manager and checked on the properties of
this pendrive. It says :This device is working properly. This apply to all the
other USB lines (Root Hub, etc).

I am using Win XP SP3.

[stevejohnson1958]

Is there anything currently on the pendrive you're trying to copy to?

[TheEmperor]

Some USB drives have the option to write protect the contents via a tab or button on the drive kind of like floppy discs used to. What is the brand/model of the USB drive?

[programming_pat]

Also the usb stick may be full

[cyw]

The pendrive is Toshiba 2GB and only half full. I can move file/folder from
said pendrive to H/disk but not the reverse.

[stevejohnson1958]

How big is the file you're trying to move to the pendrive?

[patio]

Was the file DLoaded from the web and/or created on another operating system ? ?

[stevejohnson1958]

Good point, patio...

[patio]

We'll get to the bottom of this....

[cyw]

PROBLEM SOLVED!!!

Since I can move stuff out of the pendrive, I did that and then reformat it.
Now I can transfer file/folder from H/disk to pendrive and vice versa.

However, I still cannot understand what triggers the pendrive to set up
the transfer-blockage.

Has any one experienced this weird thing before?

Many thanks, guys.

[patio]

It can be any number of things from being unplugged prematurely; static; malware etc...

[TheEmperor]

It can even be the security software that comes with some of the pen drives. My SanDisk came with software that allows me to set the thing to be read only unless I open the software and enter a password. Someone might have played a prank on you and done something like that.