How Often Should You Restart Your Computer?
One of the most common pieces of tech advice is to restart your computer. But how often should you actually do it, and does it really make a difference?
Why restarting helps
Restarting clears your RAM completely, ending all background processes including those that have become stuck or are leaking memory. It applies Windows updates that cannot be installed while the system is running. It resets network connections. It clears temporary files that accumulate during use. A restart is essentially a fresh start for your entire operating system.
How often should you restart?
For everyday home computers: once a week is a good baseline. If you notice your computer getting slower towards the end of the week, that is a sign memory is becoming fragmented and a restart will help. If your computer is always fast and you never notice slowdowns, leaving it longer is fine. Laptops that are put to sleep rather than shut down benefit from a full restart more often.
Sleep versus shutdown versus restart
Putting your computer to sleep keeps everything in memory — it is fast to wake up but does not clear RAM or apply updates. Shutting down closes everything and turns off power — good for saving electricity and applying updates but slower to start. Restarting is specifically designed to clear and reinitialise the operating system while applying pending updates.
Signs you need to restart right now
Applications are running noticeably slower than usual. Your computer is using more RAM than normal with the same applications open. WiFi or ethernet has become unreliable. A programme has become unresponsive. Windows Update is showing a red notification asking for a restart. Any of these are clear signals that a restart is overdue.
Servers and always-on machines
Servers and dedicated machines (network attached storage, media servers, security cameras) are often designed to run continuously for months without restarting. Consumer computers are not designed this way. Windows and macOS are optimised for regular restarts — daily or weekly — and their memory management reflects this assumption.
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