French Phrase
Mon OS est corrompu.
Meaning
The sentence means “My operating system is corrupted.” It indicates that the software that runs the computer has become damaged or unusable, often due to a virus, a failed update, or a hardware fault.
When to use
Use this phrase when you are talking about a technical problem with your computer, especially when you need help from a friend, a tech support agent, or when you are describing the issue on a forum.
✦Grammar Breakdown
MonOSestcorrompu.
Possessive adjective
"Mon" is the masculine singular possessive adjective meaning "my" and agrees with the noun it modifies.
Abbreviation as noun
"OS" stands for "système d'exploitation" and is treated as a masculine singular noun in French.
Verb être (3rd person singular)
"est" is the present‑tense form of "être" for "il/elle/on" and links the subject to a description.
Past participle used as adjective
"corrompu" is the past participle of "corrompre" used here as an adjective; it agrees in gender and number with the noun (masculine singular).
🗨In Conversation
Mon OS est corrompu.
My OS is corrupted.
Tu as essayé de le réinstaller ou de le restaurer à partir d’une sauvegarde ?
Have you tried reinstalling it or restoring it from a backup?
✕Common Mistakes
Mon OS sont corrompu.
The verb must agree with the singular subject "OS"; use "est" not "sont".
Mon OS est corrompue.
"OS" is masculine, so the adjective stays masculine: "corrompu".
Mon OS est corrompuer.
The correct spelling is "corrompu"; the extra "er" is a common typo.
↔Alternatives
Mon système d'exploitation est corrompu.
My operating system is corrupted.
Mon ordinateur est infecté.
My computer is infected.
Le logiciel de base de mon PC ne fonctionne plus.
The core software of my PC no longer works.
Cultural Tip
In French tech circles, "OS" is a common anglicism and is pronounced as the French letters "o" and "èss". The adjective "corrompu" is more formal; many speakers also say "mon OS est planté" (my OS has crashed) or "mon OS ne démarre plus" (my OS won’t start). Keep the register polite when speaking to support staff, but you can be more casual with friends.