How do you revert to autoCAD LT after it's been converted to Student Version?

[mtinteriors]

Hi, without knowing i pasted a furniture block from a Student Version into my licensed AutoCad LT... now it's printing with the student version watermark... any ideas how I can revert back to normal printing? The student Version was on a removable disk and not even installed on the machine... Please advise. Thank you.

[pendean]

Google search it, and next time don't ignore the big warning LT provides when you do that (if you recklessly turned it off forever you can turn all those useful alerts back on in OPTIONS command).

[mtinteriors]

Hi, i'm new to LT and didn't not get a warning... Will definitely turn it back on. Do you know if reverting is actually possible? I tried googling it without any luck. Any help is much appreciated. Thank you.

[pendean]

There is a trick, but our hosts frown on it.
It will fix the one file usually.

[Charles_Shade]

You will need to contact a reseller in your area or try and remove all the infected files from your system.

Delete the block immediately. You can use ADCENTER to Search for this Block in each drawing to find all instances of the block.

And delete those drawings as well.

Find a reseller.