
Just a spreadsheet, nothing fancy. Right now using Google Docs but it could easily be some other spreadsheet app (LibreOffice, Microsoft Office, etc.).
These sort of things just need to be something you understand and follow for your own use. Way back I started out trying to track finances with Quicken but in the end I found it way too complicated for what I needed and hated the idea of my data being locked in their specific format. And I didn’t even need any of the fancy stuff like syncing with bank accounts/credit cards.
Mine is pretty simple, the main columns represent each month of the year, top group of rows represent different income sources, followed by a group of rows representing non-discretionary expenses, followed by a group of rows representing discretionary expenses. Then totals at the bottom. Works for me.







How long has it been since the upgrade? You only get 10 days to do it easily so if it’s been less than 10 days just go to Settings / System / Recovery / Go back
https://learn.microsoft.com/en-us/answers/questions/2337049/downgrade-from-windows-11-to-windows-10-article
If it’s been more than 10 days then you’d need to do a fresh re-install of Windows 10 on that system, meaning losing the currently installed apps and data. Make sure to back up before doing that.
EDIT: Maybe I misunderstood your question - if the laptop never had Windows 10 to begin with then there’s nothing to rollback to. You’d have to do a brand new installation of Windows 10 on that system which may or may not work if the system never had the proper Window 10 drivers & whatnot.