How to Speed Up a Slow Laptop

Open the activity view before you change anything. On Windows press Ctrl+Shift+Esc and sort by CPU and then by memory; on a Mac open Activity Monitor and do the same. Write down the four or five processes at the top rather than trusting a general feeling of slowness. A browser with forty tabs open, a backup client scanning the drive, and an antivirus doing a first-run sweep account for a surprising share of 'dead' laptops.

Most machines are slow because everything the user ever installed launches the moment the power button is pressed. In Windows Task Manager, open the Startup apps tab and sort by startup impact; disable the ones marked High that you do not need the instant you log in. On a Mac, go to System Settings, then General, then Login Items, and remove apps from 'Open at Login'. Leave your security software and disk drivers alone.

A nearly full drive slows a laptop down because the system has nowhere to put temporary files and virtual memory. Aim to keep at least 15 to 20 percent of the internal drive free. Empty the trash, clear the downloads folder, and move photos and video to an external drive or a cloud library you actually open. Windows Storage Sense and the Mac's Storage management screen will show you the largest folders in minutes.

Install the operating system updates, the graphics driver from the manufacturer rather than whatever Windows offered, and the firmware or BIOS update if the vendor lists one for your model. Then do a real restart, not a lid close. A machine that has been 'sleeped' for three weeks is running with the accumulated mess of everything it has done since the last full boot.

Run a full scan with your security software, then a second opinion scan from a different vendor's standalone tool. The kind of slowdown that comes with a changed search page, new toolbars, or ads appearing inside ordinary pages points at browser add-ons rather than a deep infection. Reset the browser's search engine and extensions from its own settings page, not by deleting the profile, so your bookmarks survive.

For most people the browser is the single largest consumer of memory on the machine. Each open tab keeps a live page in RAM, and heavy sites can take 300 to 500 MB on their own. Close what you are not using, remove extensions you have not touched in a month, and turn on the browser's tab sleeping or memory saver option so old tabs stop costing you. If you rely on dozens of tabs, use a session manager to save and reopen them instead.

On an older laptop, animation and transparency cost real frames. In Windows, set Performance to 'Adjust for best performance' and then re-tick the two or three options you actually miss, such as smooth font edges. On a Mac, reduce motion and turn off the desktop wallpaper animation and transparency in Accessibility settings. Switch off file content indexing or limit it to the folders you search if you have a large media library on the internal drive.

A laptop that runs normally for twenty minutes and then becomes sluggish is throttling, not failing. Feel where the air comes out, listen for a fan that has gone from quiet to constant, and check the CPU temperature with a monitoring tool while the machine is under load. Clean the vents with a short burst of compressed air, use the machine on a hard flat surface rather than a bed or a cushion, and raise the rear edge a little to let air under it.

Memory upgrades only pay off if the machine was running out. Check your typical usage in the activity view: if you are nowhere near full capacity, more RAM will change nothing. If you are, find the maximum the model supports and whether the sticks are reachable or soldered down, then match the existing module's type and speed. Fitting two matched sticks is better than one large one, because the memory runs in dual channel.

If the laptop still runs off a spinning drive, this single change does more than every software step above combined. Boot times, opening folders, waking from sleep, and application launch all improve, because those tasks were waiting on a read head. Clone the old drive to the new one to keep everything as it was, or do a clean installation, which is slower today and better a month from now.

A machine that has collected software, settings, and half-finished projects for five years is often slower than any fix can reach. Back up your documents, browser data, and licence details, then do a clean install or the vendor's reset option. Choose to keep documents only rather than 'keep everything', because keeping everything keeps the settings that caused the problem.

Add up what the repairs would cost against what the machine is worth working, and be honest about the parts you cannot fix: a tired battery, a dim screen, a hinge that no longer holds, a keyboard with dead keys. A laptop that cannot run the current version of its operating system securely is not worth upgrading, no matter how fast it becomes. Beyond that, a cheap machine used for browsing and documents is a better answer than an expensive repair on an old one.