Start from ownership and edition
Locate your legitimate copy and record its title, edition and source. Save your existing game progress before reinstalling. A guide for a disc release can differ from one for a later store edition, even when the game’s title is identical.
Find the actual failure
Separate failure to install, failure to launch and poor performance after launch. Note the error message and your system details. Check the publisher and storefront guidance first. Do not add a pile of unrelated patches; one deliberate change is easier to evaluate and undo.
Check services separately
A game launching locally does not prove that an older multiplayer or account service still operates. Likewise, original game requirements do not necessarily describe what the current store client requires. Keep those layers separate when deciding whether a particular old game fits your setup.