If you want, tell me: the installer/archive name, where you got it, your OS version, and the exact error text and I’ll suggest the next specific steps.
The error might be specific to one software. Try extracting the archive with a different tool. For example, if you're using WinRAR, try using 7-Zip and vice versa. how to fix unarc dll returned an error code 1
Start with the simplest fixes (disk space and admin mode), then work your way down the list. By the time you reach Step 5, your installation will likely be running smoothly. If you want, tell me: the installer/archive name,