Direct answer
Quick answer
Start by restarting your laptop, checking free storage and using Task Manager to review CPU and RAM usage while it feels slow. If it gets hot or the fans run constantly, check CPU temperature using your manufacturer’s monitoring tool, where available. If the machine is over two years old and has never been opened for internal cleaning, consider a professional inspection and clean, particularly if it is noisy or overheating. Back up important files before repairs or upgrades.
Key takeaways
Start with the simple checks
Restart the laptop and test it with only the apps you need open. Check free storage, review unnecessary startup apps and install supported Windows and manufacturer updates. Run a Windows Security malware scan. If the storage drive reports errors or makes unusual noises, prioritise a backup and professional assessment before further testing.
Check RAM usage in Task Manager
Press Ctrl + Shift + Esc and select Performance, then Memory. Note the installed RAM and how much is in use while the laptop is slow. Next, open Processes and select the Memory column to show the biggest users first. Save your work, then close unneeded apps and browser tabs normally. If memory remains close to full during your usual work and the laptop struggles to switch apps, ask whether a RAM upgrade is suitable. A high percentage on its own is not proof that more RAM is needed; avoid ending unfamiliar Windows processes or using RAM-cleaner utilities.
Check CPU usage and temperature
In Task Manager, review CPU usage and sort Processes by CPU to see which apps are busy. CPU usage is not a temperature reading. For temperature checks, use your laptop manufacturer’s monitoring or diagnostic tool where available; otherwise ask a technician to measure it with a reputable monitoring tool. Compare readings when idle and during normal work with the specifications for your exact processor and laptop. Brief temperature rises under load can be normal. Persistent heat accompanied by reduced speed, constant loud fans or unexpected shutdowns deserves investigation. Avoid stress-testing a machine that is already overheating.
Consider professional internal cleaning after two years
If your laptop or desktop is over two years old and has never been opened for internal cleaning, consider booking a professional inspection and clean, particularly if the fans are louder than before, vents look dusty or it slows down as it warms up. Dust can restrict airflow around fans and cooling fins. Ask the technician to inspect the cooling system, remove dust safely and check temperatures afterwards. Age alone does not mean cleaning is required: usage, environment and symptoms matter. Thermal paste replacement should follow an assessment rather than being assumed necessary. Keep vents clear and use a laptop on a firm surface. If you are unfamiliar with safe disassembly, use a professional and check the manufacturer’s servicing guidance.
Choose upgrades after finding the bottleneck
An SSD may improve responsiveness when an older hard drive is the limitation. Extra RAM may help when your normal applications repeatedly run short of memory, provided the model supports an upgrade. Neither solves every performance problem. Check drive health, cooling, hardware compatibility and operating-system support before spending money.
When to get professional help
Arrange an assessment if slowdowns persist, the laptop repeatedly shuts down, temperatures appear excessive for the model or you are unsure about internal cleaning. Tell Techno Life the device model, RAM usage during the problem, any temperature readings and whether it has ever been cleaned internally. We can discuss diagnosis, cleaning or suitable upgrades and agree the scope and pricing before work begins.
FAQ
How do I check RAM usage on a Windows laptop?
Press Ctrl + Shift + Esc to open Task Manager. Select Performance, then Memory, to see RAM usage. Under Processes, sort by Memory to find the apps using the most. Check while the slowdown is happening; high usage alone does not prove a fault.
How do I check my laptop CPU temperature?
Use the laptop manufacturer’s monitoring or diagnostic tool if it provides a CPU temperature reading. Task Manager normally shows CPU usage rather than CPU temperature. Compare readings with the limits for your exact laptop and processor; there is no single ideal temperature for every model.
Should a laptop over two years old be professionally cleaned?
If it is over two years old and has never been opened for internal cleaning, consider a professional inspection and clean, especially if the fans are loud, vents look dusty or performance drops as it warms up. Two years is a practical prompt to review its condition, not a universal servicing deadline.
Will more RAM or an SSD fix a slow laptop?
An SSD can help if an older hard drive is the bottleneck, and more RAM may help if normal work repeatedly exhausts available memory. Check compatibility and the cause first: some laptops have soldered RAM, and an upgrade will not fix overheating or a failing component.
When should I replace a laptop?
Compare repair and upgrade costs with the device’s condition, supported software and suitability for your work. Diagnose the cause before deciding to replace it.