Hi there! When you create a new document, there's a window with few tabs, por example inside Print you can find Tabloid, Letter, etc. But I can't see nothing! 😞 There's only online/downloadable mockups, please help! Thank you!
Could you please share the version of Photoshop from Help > About Photoshop? Does it also open when a document is already open? Have you recently updated Photoshop or the operating system? Have you tried any troubleshooting steps?
Go to the location of the preference folder mentioned below and rename it to backup it up.