Thank you for the speedy response. I ended up downloading and installing the QuickBooks Desktop Pro 2012 Trial and upgrading all my companies to that version from the 2009 version. I then proceeded to install the QuickBooks Desktop Pro 2015 Trial and again converted and upgraded all of the files. Finally, I went back into my 2019 version and had no issues upgrading the company files to the latest version. It took an awful long time (approximately 8 hours) to perform the upgrades in this manner, but I was able to get it done and ultimately made my customer happy! Lesson learned here: Do not let the software get too far out of date! :)
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I am having issues when restoring files from a full Desktop Pro 2009 backup to a Desktop Pro 2019 version. I successfully have restored 1 of my 16 company files so far, but the last 6 have failed after attempting to perform the upgrade. The file appears to restore fine. When I attempt to open it after restore, I am prompted for password. Once I put in the password, it prompts me to update. After I click the update button, it appears to be converting. Then, at the end, it tells me it couldn't update my company file. Has anyone else experienced this? I can tell you that the only successful conversion I have had so far required me to rename the company file by removing special characters in the name. But this did not help the company files that are now failing.
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