A file called thumbs.db is copying itself into folders as and when I copy/scan image files. Is it malicious or just an unfortunate blip? Isabel Jack
Thumbs.db is an operating system file where Windows XP stores thumbnails of images to save recreating them each time you open a folder that contains images. Normally these files are hidden, but you can delete them if you see them. You can stop XP from creating them by opening Windows Explorer, selecting Tools and then Folder Options. Click the View tab, put a tick in the box next to "Do not cache thumbnails", and click OK.
