Maintenance

Slow Computer or Laptop? 8 Proven Fixes to Speed Up Your PC in Dhaka (2026)

13 June 2026 · 12 min read · BAYAS Editorial

A slow computer does not just waste your time. It wastes your patience, your work rhythm, and — if you are running a business — your revenue. At BAYAS, we get 15 to 20 calls every week from Dhaka users who say the same thing: "My PC was fine last year. Now it takes 5 minutes to boot and everything lags."

The good news: most slow computers are not dying. They are just neglected. A combination of ageing hardware, software bloat, Dhaka's heat and dust, and a spinning hard drive that should have been retired three years ago.

Here are the 8 fixes we apply at BAYAS — ordered from least invasive to most involved — that turn a frustrating machine back into a responsive one.

1. Kill startup bloat (free, 15 minutes)

Every application that auto-starts with Windows or macOS steals RAM and CPU cycles before you have opened a single file. We routinely find 12 to 25 startup items on customer machines — updaters, cloud sync agents, printer helpers, OEM "utilities," and abandoned trial software.

What to do:

Windows 10/11: Press Ctrl + Shift + Esc → Startup tab → disable anything you do not need running at boot.
macOS: System Settings → General → Login Items → remove non-essential entries.

At BAYAS, we use Autoruns (Sysinternals) for Windows and EtreCheck for macOS to catch launch agents and daemons that Task Manager does not show. A cleanup of 15 startup items typically shaves 20 to 40 seconds off boot time.

2. Free up your system drive (free, 20 minutes)

When your C: drive or Macintosh HD drops below 10% free space, the operating system cannot write temporary files, page memory, or cache efficiently. The machine chokes.

Target thresholds:

Drive type	Minimum free space
HDD (spinning)	15–20%
SATA SSD	10–15%
NVMe SSD	10%

What to clear first:

%TEMP% and prefetch on Windows
Downloaded installers and .dmg files on macOS
Old WhatsApp media folders (we have seen these consume 40+ GB)
Browser caches (Chrome alone can hold 5 to 15 GB of cached data)
Recycle Bin / Trash

If you are under 256 GB total storage, this step alone can restore noticeable responsiveness. For users who are perpetually full, an SSD upgrade is the real fix.

3. Run a proper malware scan (free or BDT 1,500–3,000)

Not every slow computer has malware. But in Dhaka, where cracked software, shared USB drives, and unpatched Windows installations are common, malware is a top-3 cause of unexplained slowness. Cryptominers, browser hijackers, and adware run silently in the background, consuming 30 to 80% of your CPU without any visible window.

DIY scan (free):

Download Malwarebytes (free version) — run a full scan, not the quick one.
Run Windows Defender Offline Scan (Settings → Privacy & Security → Windows Security → Scan options).
On macOS, run Malwarebytes for Mac or DetectX Swift.

When DIY is not enough: Rootkits, bootkits, and deeply embedded browser hijackers survive standard scans. BAYAS uses an offline scanning environment — booting from external media so the malware has no chance to hide — followed by a clean OS image if the infection is severe. Our computer home service handles this in one visit.

4. Check your RAM usage (free diagnostic)

Insufficient RAM is the most common hardware bottleneck we see in Dhaka. Here is the reality for 2026:

RAM	Suitable for
4 GB	Light browsing, one or two Office documents. Struggles with modern browsers.
8 GB	Standard office work, 10–15 browser tabs, light photo editing.
16 GB	Comfortable multitasking, programming, moderate video editing.
32 GB+	Heavy VMs, 4K editing, engineering simulation.

Check your usage: Task Manager → Performance tab → Memory. If "In use" is above 80% at idle, you are short on RAM. On macOS, Activity Monitor → Memory tab → look at Memory Pressure. Yellow or red means you need more.

What you can do immediately:

Close browser tabs you are not using (each tab can consume 150–400 MB).
Switch from Chrome to Edge or Firefox if RAM is tight — Chrome's per-tab overhead is measurably higher.
Disable browser extensions you do not use daily.

If you are on 4 GB in 2026, an upgrade to 8 GB or 16 GB is the single best performance investment. BAYAS laptop repair service handles RAM upgrades at your home — most laptops take under 20 minutes, and we bring the correct SODIMM module matched to your motherboard. For a full upgrade assessment, see our computer upgrade service.

5. Thermal repaste and fan clean (BDT 1,500–3,000)

Dhaka's ambient heat and dust combine to bake thermal paste dry in 12 to 18 months. When paste dries, your CPU and GPU cannot transfer heat to the cooler. The result: the system throttles clock speeds to protect itself, and you experience stuttering, lag, and random slowdowns that feel like a software problem.

Signs of thermal throttling:

The laptop or desktop runs loud even when you are doing nothing.
Performance drops sharply after 10 to 15 minutes of work.
The chassis is uncomfortable to touch near the vents.
Task Manager shows CPU speed dropping below base clock under load.

BAYAS thermal service includes:

Disassembly and old paste removal with isopropyl alcohol
Fresh thermal paste (Arctic MX-4 or equivalent)
Fan and heatsink cleaning
Fan curve verification
10-minute stress test before reassembly

Price: BDT 1,500–3,000 depending on device complexity. For a deeper guide on keeping your PC cool year-round, read our Dhaka summer cooling guide. If your drive is showing signs of failure, our data recovery service can help before it's too late.

6. Replace a failing hard drive before it dies (BDT 4,000–8,000)

A mechanical hard drive (HDD) does not just get slower with age — it develops bad sectors, read errors, and retry cycles that can turn a 30-second boot into a 5-minute ordeal. Worse, a failing HDD is a ticking clock for your data.

Warning signs:

Clicking, grinding, or rhythmic ticking sounds from the drive.
File Explorer or Finder freezes for 10 to 30 seconds when browsing folders.
CHKDSK or fsck runs automatically on boot.
SMART status shows "Caution" or "Bad" (use CrystalDiskInfo on Windows, DriveDx on macOS).

If you hear clicking, stop using the computer immediately. Every spin cycle can destroy more data. WhatsApp BAYAS for a diagnostic — we clone the drive if it is still readable and move your data to a new SSD before the drive fails completely. For more speed-up tips, see our 10 easy fixes for slow computers and laptop repair cost guide.

7. Upgrade to an SSD (BDT 2,500–12,000)

This is, by far, the single most transformative upgrade for any computer that still boots from a spinning hard drive. The difference is not marginal — it is a 5× to 20× improvement in boot time, application launch, and file operations.

Real BDT costs for SSD upgrades in Dhaka (June 2026):

SSD type	Capacity	Parts cost (Dhaka retail)	Labor at BAYAS	Total
SATA 2.5" (WD Green / Transcend)	240–256 GB	BDT 2,000–3,000	BDT 500	BDT 2,500–3,500
SATA 2.5" (Samsung 870 EVO / Crucial MX)	500–512 GB	BDT 4,000–5,500	BDT 500	BDT 4,500–6,000
SATA 2.5" (Samsung 870 EVO)	1 TB	BDT 8,000–9,500	BDT 500	BDT 8,500–10,000
NVMe M.2 (WD Blue SN580 / Kingston NV3)	500 GB	BDT 4,500–5,500	BDT 800	BDT 5,300–6,300
NVMe M.2 (Samsung 990 EVO / WD Black)	1 TB	BDT 8,500–11,000	BDT 800	BDT 9,300–11,800

Laptop owners — check compatibility first. Older laptops may only have a SATA bay, while newer ultrabooks may require an NVMe M.2 2280 drive. Some budget laptops have a single slot with the OS drive soldered — in those cases, an SSD upgrade is not possible, and we will tell you honestly. WhatsApp us your laptop model for a compatibility check.

BAYAS SSD upgrade includes:

Drive cloning (your Windows, files, and settings move exactly as they were)
Old drive returned to you as external storage (we provide a USB enclosure at cost)
Boot verification and speed benchmark before handover

8. Clean Windows reinstall (BDT 1,500–2,500)

Sometimes the accumulated weight of years of installs, uninstalls, driver fragments, registry bloat, and half-removed software is too much for in-place fixes. A clean install of Windows 11 (or Windows 10 if your hardware requires it) resets every software variable to factory-fresh performance.

When a clean install makes sense:

The machine is 3+ years old and has never been reformatted.
You have tried fixes 1 through 4 and the improvement is minor.
Windows Update is broken or stuck in a loop.
You keep seeing random errors that no amount of Googling fixes.

BAYAS clean install service:

Full data backup before format (your files, bookmarks, licenses)
Fresh Windows install with current drivers from manufacturer
Windows Update run to completion
Essential software reinstalled (browser, Office, PDF reader, antivirus)
Your data restored to its original folders
30-day support period for any post-install issues

Price: BDT 1,500–2,500 including backup and data restoration. We bring a portable SSD for the backup, so nothing touches the cloud unless you want it to.

The BAYAS speed-up diagnostic visit

If you are not sure which of these 8 fixes applies to your machine, do not guess. Our computer maintenance service visit (BDT 700–1,200) includes a structured diagnostic that covers every item on this list:

Startup audit — what loads, what can be disabled
Storage health check — SMART status, free space, fragmentation
Malware scan — offline-capable environment
RAM analysis — usage, capacity, upgrade path
Thermal check — CPU/GPU temperatures, fan speeds, paste condition
HDD vs SSD assessment — migration feasibility, cost estimate

You get a verbal summary on the spot and a WhatsApp summary with specific recommendations — no obligation. If you choose to proceed with any fix, the diagnosis fee is credited toward the repair.

Why computers slow down faster in Dhaka

Three environmental factors unique to Dhaka accelerate the degradation that causes slowdowns:

Heat: Ambient temperatures above 32°C for 6+ months of the year dry thermal paste, degrade capacitors, and force fans to run at maximum RPM — wearing bearings prematurely.
Dust: Dhaka's particulate-heavy air clogs vents and heatsinks faster than in most cities. A PC that would stay clean for 18 months in a temperate climate needs cleaning in 6 to 9 months here.
Power instability: Voltage dips and load-shedding events — even with a UPS — cause abrupt shutdowns that fragment file systems and corrupt OS files over time. A machine that experiences 200 unexpected power losses in 2 years will run measurably slower than one that never did.

This is not an excuse to accept a slow computer. It is a reason to maintain your machine more deliberately than someone in London or Singapore would.

When to repair vs replace

If your computer is more than 6 years old and needs more than two of the fixes above — say, an SSD upgrade plus a RAM upgrade plus a thermal service — the combined cost may approach the value of a newer machine. At BAYAS we give you the honest math:

Machine age	Combined repair cost	Recommendation
1–3 years	Any amount	Repair — the machine has years of life left
4–5 years	Under BDT 8,000	Repair — cost-effective
4–5 years	Over BDT 12,000	Evaluate — compare with replacement cost
6+ years	Over BDT 6,000	Consider replacement — especially if the CPU is dual-core or older

But specifications are not everything. If the machine fits your workflow, has a keyboard you like, and just needs a storage and RAM refresh — repair it. We have extended the useful life of hundreds of 5- and 6-year-old laptops in Dhaka with a BDT 5,000 SSD and a BDT 2,500 RAM stick.

Get a speed-up diagnosis for your machine

Every computer slows down. Not every computer needs to stay that way.

WhatsApp BAYAS at 01712-644590 with:

Your computer or laptop brand and model
What is slow (boot time, application launch, browsing, everything)
How old the machine is
Your Dhaka zone

We will confirm a same-day or next-day home visit slot and quote a diagnosis fee. You watch the process, you approve the fix, and you pay only after you see the result.

This guide was written by BAYAS Editorial, based on diagnostic data from 2,000+ speed-up service visits across 36 Dhaka zones since 2018. Prices reflect the Dhaka retail market as of June 2026. Last updated: June 13, 2026.