This is the 16285th most frequent Polish word.
usunięciu
"Removal" or "deletion."
Here, 'usunięciu' is used as a noun in the instrumental case, indicating the outcome of removing or deleting something.
Po usunięciu pliku zauważyłam, że nie można go odzyskać.
After deleting the file, I noticed that it cannot be recovered.
In this example, 'usunięciu' appears in the instrumental case, referring to the process or act of removing the virus.
Podczas usunięciu wirusa komputerowego, aktualizacja programu była konieczna.
During the removal of the computer virus, updating the software was necessary.
In this context, 'usunięciu' is again a noun in the instrumental case, indicating the result of taking away an obstacle.