I can see that it's a duplicate post.

My colleague, AileneA already responded to your query about getting a validation code. You can reply to her through this link so we'll be able to assist you further. The QuickBooks Community team is always here to help if you have any other concerns or follow-up questions. Have a good day!

@plsdma-gmail-com 

Do you have old year version of QB Desktop UK version?

Hi Nicole,

Hope you are well can you maybe assist me with a Validation Code my PC Crashed and I need to install QB 2019 Pro again

@Nic26 

You're using QB Desktop 2019 UK version, correct? You will need to contact Support@UK to request a validation code. If they refuse to provide it, you need a workaround to open your company files.

Hello there, @Nic26.

I can see that you posted twice in this forum. Please click the link to get redirected to the original post answered by my colleague: https://quickbooks.intuit.com/learn-support/en-za/other-questions/re-validation-code-required/01/144...

If you have any other questions, you can always visit us and post your concerns. Have a great day!