Installation Corrupted-Can't Update or Download

Samuel, Is the license number complete. AVG license number or product key consists of 6x5 upper-case letters. When your license number or product key is not accepted by AVG, please do the following:
Visit (http://www.avg.com/lost).
Fill in the email address that you used when purchasing AVG, and the verification code. Then click Continue.
You will shortly receive an email with a list of all your AVG products and their license numbers. 
Use the license number from this email to activate your AVG.
AVG Guru

I have a notice that my AVG Anti-Virus is not up to date.  I cannot get a successful download of the update because I keep getting a notice that the installation is corrupt.  I tried downloading a replacement tool but I get the message that the License number is incorrect although it is identical to the License number displayed under the SUPPORT tab.

Samuel, Is the license number complete. AVG license number or product key consists of 6x5 upper-case letters. When your license number or product key is not accepted by AVG, please do the following:
Visit (http://www.avg.com/lost).
Fill in the email address that you used when purchasing AVG, and the verification code. Then click Continue.
You will shortly receive an email with a list of all your AVG products and their license numbers. 
Use the license number from this email to activate your AVG.
AVG Guru