Tell us about your computer.
What is your operating system? 32bit or 64bit?
How much memory?
Tell us about this photo.
What is the size of the photo in pixels (width and height) before export? Do not tell me megabytes
Tell us about Lightroom
What is the exact version NUMBER of Lightroom?
What settings did you choose in the Export dialog box under Image Sizing and Sharpening?
it's an updated computer, 64 bit
8 GB ram (I think maybe more has been installed but it says 8)
I just did a disk clean up, it says about 1/4 memory is unused space.
windows 7 professional
Intel (R) Core (MT) i5-2400 firstname.lastname@example.org GHz 3.10 GHz
Photos imported as RAW, exported as small, 1500k, no data attached