Maintenance

Computer Slow? 10 Easy Fixes That Actually Work (Dhaka 2026 Guide)

13 June 2026 · 10 min read · BAYAS Editorial

আপনার computer slow হয়ে গেছে? You are not alone. "Computer slow solution" is one of the most searched tech problems in Bangladesh — and in Dhaka specifically, where heat, dust, and power instability accelerate hardware degradation, the problem is worse than in most cities.

At BAYAS, we speed up 15–20 computers every week across Dhaka. The good news: most slow computers are not broken. They are just neglected. Here are 10 fixes that actually work — ordered from free and easy to more involved solutions.

1. Kill startup programs that slow down boot (Free, 10 minutes)

Your computer loads dozens of programs before you even open a browser. Each one eats RAM and CPU. We routinely find 15–25 startup items on customer machines — updaters, cloud sync agents, printer helpers, and abandoned trial software.

How to fix:

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

BAYAS tip: We use Autoruns (Sysinternals) for Windows to catch hidden startup items that Task Manager misses. Cleaning 15 startup items typically shaves 20–40 seconds off boot time.

2. Free up disk space — your drive is probably choking (Free, 15 minutes)

When your system drive drops below 10–15% free space, Windows cannot write temporary files, page memory, or cache data efficiently. The result: everything slows to a crawl.

What to delete first:

%TEMP% folder (Windows) — can hold 2–10 GB of junk
Browser cache (Chrome alone can store 5–15 GB)
Old WhatsApp media folders (we have seen 40+ GB)
Downloads folder (installers you used once and forgot)
Recycle Bin / Trash

Quick command: Press Win + R → type %TEMP% → Select All → Delete. Skip files that say "in use."

3. Scan for malware — a hidden performance killer (Free, 20 minutes)

In Dhaka, where cracked software, shared USB drives, and unpatched Windows installations are common, malware is a top-3 cause of unexplained slowness. Cryptominers and browser hijackers run silently, eating 30–80% of your CPU.

Free scan steps:

Download Malwarebytes (free version) — run a Full Scan, not Quick.
Run Windows Defender Offline Scan (Settings → Privacy & Security → Windows Security → Scan options → Microsoft Defender Offline scan).
On macOS: use Malwarebytes for Mac.

When DIY is not enough: Rootkits and deeply embedded malware survive standard scans. BAYAS uses an offline scanning environment — booting from external media — followed by a clean OS image if infection is severe. See our computer maintenance service.

4. Check your RAM — the most common hardware bottleneck (Free diagnostic)

Insufficient RAM is the #1 hardware bottleneck we see in Dhaka. In 2026, here is what different RAM amounts can handle:

RAM	What it handles
4 GB	Light browsing, one Office app. Struggles with modern browsers.
8 GB	Standard office work, 10–15 browser tabs.
16 GB	Comfortable multitasking, programming, photo editing.
32 GB+	Video editing, VMs, engineering software.

Check your usage:

Windows: Task Manager → Performance → Memory. If "In use" is above 80% at idle, you need more RAM.
macOS: Activity Monitor → Memory tab → Memory Pressure. Yellow or red = problem.

Immediate fixes:

Close unused browser tabs (each uses 150–400 MB)
Switch from Chrome to Edge or Firefox (Chrome uses more RAM per tab)
Disable unused browser extensions

If you are on 4 GB, upgrading to 8 GB or 16 GB is the single best performance investment. BAYAS handles RAM upgrades at your home — most laptops take under 20 minutes. For a full upgrade assessment, see our computer upgrade service.

5. Disable visual effects and animations (Free, 5 minutes)

Windows animations look nice but consume CPU and GPU resources — especially on older machines.

Windows 10/11:

Press Win + R → type sysdm.cpl → Enter
Advanced tab → Performance → Settings
Select "Adjust for best performance" or manually disable: Animate windows, Fade menus, Animations in the taskbar

macOS:

System Settings → Accessibility → Display → Reduce motion + Reduce transparency

This alone can make a 5-year-old laptop feel noticeably snappier.

6. Update Windows and drivers (Free, 30 minutes)

Outdated drivers and a half-updated Windows installation cause compatibility issues, security vulnerabilities, and performance problems.

Steps:

Windows Update: Settings → Windows Update → Check for updates. Install everything, including optional driver updates.
GPU drivers: Download directly from NVIDIA / AMD / Intel websites — do not rely on Windows Update for graphics drivers.
BIOS/UEFI update: Check your laptop manufacturer's support page. A BIOS update can fix thermal management bugs that cause throttling.

BAYAS warning: Do not download "driver updater" software — most are malware or adware in disguise. Get drivers from the manufacturer's website only.

7. Clean your laptop's fan and repaste thermal compound (BDT 1,500–3,000)

This is where Dhaka's environment makes things worse. Ambient temperatures above 32°C for 6+ months of the year dry thermal paste in 12–18 months. Dust clogs vents in 6–9 months (vs 18 months in cooler climates).

Signs of thermal throttling:

Fan runs loud even when idle
Performance drops after 10–15 minutes of use
Laptop chassis is uncomfortably hot near vents
CPU speed drops below base clock under load

DIY cleaning (partial fix): Use compressed air to blow dust out of vents. Hold the fan blade still while blowing to prevent bearing damage.

Full fix: BAYAS thermal service (BDT 1,500–3,000) includes disassembly, old paste removal, fresh Arctic MX-4 paste application, fan cleaning, and a 10-minute stress test. See our detailed guide on keeping your PC cool in Dhaka. If your hard drive is also failing, our data recovery service can save your files before it's too late.

8. Upgrade to an SSD — the single most transformative upgrade (BDT 2,500–12,000)

If your computer boots from a spinning hard drive (HDD), this upgrade alone can make it feel like a new machine. Boot times drop from 2–5 minutes to 15–30 seconds. Applications launch instantly instead of grinding.

Quick pricing (Dhaka, June 2026):

SSD	Capacity	BAYAS total (parts + labour)
SATA 2.5" (WD Green / Transcend)	240–256 GB	BDT 2,500–3,500
SATA 2.5" (Samsung 870 EVO)	500 GB	BDT 4,500–6,000
NVMe M.2 (WD Blue SN580)	500 GB	BDT 5,300–6,300
NVMe M.2 (Samsung 990 EVO)	1 TB	BDT 9,300–11,800

What BAYAS includes: Drive cloning (your Windows, files, and settings transfer exactly), old drive returned as external storage (USB enclosure at cost), and boot verification with speed benchmark.

WhatsApp your laptop model to 01712-644590 for a free SSD compatibility check.

9. Do a clean Windows reinstall (BDT 1,500–2,500)

Sometimes the accumulated weight of years of installs, uninstalls, driver fragments, and registry bloat is too much for incremental fixes. A clean Windows install resets everything to factory-fresh performance.

When this makes sense:

Machine is 3+ years old and never reformatted
Fixes 1–7 improved things only slightly
Windows Update is broken or stuck
Random errors that no amount of Googling resolves

BAYAS clean install includes:

Full data backup before format
Fresh Windows install with current drivers
All Windows updates installed
Essential software reinstalled (browser, Office, PDF reader, antivirus)
Data restored to original folders
30-day post-install support

Price: BDT 1,500–2,500 including backup and data restoration.

10. Prevent future slowdowns with regular maintenance (Free — build the habit)

Fixing your slow computer once is good. Keeping it fast requires a few habits:

Monthly: Run Disk Cleanup (Windows) or clear caches (macOS). Delete files you do not need.
Every 3 months: Check startup programs — new software loves to add itself.
Every 6 months: Clean vents with compressed air (more often in Dhaka's dusty environment).
Every 12 months: Consider a thermal paste refresh if your laptop runs hot.
Always: Keep 15–20% of your system drive free. Never let it fill completely.
Always: Shut down properly. Dhaka's frequent power cuts cause file system corruption when the machine is running.

When to call BAYAS

If you have tried fixes 1–5 and your computer is still slow, the problem is likely hardware — and that needs hands-on diagnosis.

BAYAS speed-up diagnostic visit (BDT 700–1,200):

Startup audit
Storage health check (SMART status, free space)
Malware scan (offline-capable)
RAM analysis and upgrade path
Thermal check (CPU/GPU temps, fan speeds, paste condition)
HDD vs SSD assessment with cost estimate

You get a verbal summary on the spot and a WhatsApp message with specific recommendations. The diagnostic fee is credited toward any repair you approve.

WhatsApp 01712-644590 with your computer model and what is slow. We will confirm a same-day or next-day home visit across all 36 Dhaka zones.

Frequently Asked Questions

Why is my computer so slow all of a sudden?

Sudden slowness usually points to one of three causes: (1) a Windows update running in the background, (2) malware consuming CPU, or (3) a failing hard drive developing bad sectors. Open Task Manager (Ctrl + Shift + Esc) and check which process is using the most CPU or disk. If it is "System" or "svchost" at 100% disk, your HDD is likely failing.

Does adding RAM make a computer faster?

Yes — but only if RAM is the bottleneck. If your computer already has 16 GB and you rarely exceed 80% usage, adding more RAM will not help. Check Task Manager → Performance → Memory. If "In use" is consistently above 80%, adding RAM will make a significant difference. If it is below 60%, the bottleneck is elsewhere (likely your hard drive).

Is it better to repair or replace a slow computer?

If your computer is under 5 years old and the repair costs less than 40% of a new equivalent, repair is almost always the better choice. A BDT 5,000 SSD upgrade + BDT 2,500 RAM upgrade can make a 4-year-old laptop feel brand new for a fraction of the cost of replacement. If the machine is 6+ years old and needs motherboard work, consider replacing it.

How much does it cost to speed up a slow computer in Dhaka?

It depends on the cause. Software cleanup (startup programs, malware removal, temp files) is free if you do it yourself or BDT 1,500–2,500 if BAYAS does it. An SSD upgrade costs BDT 2,500–12,000 depending on capacity. A full diagnostic at BAYAS costs BDT 700–1,200 (credited toward repair). For a detailed breakdown, see our laptop repair cost guide for Dhaka and 8 proven speed-up fixes.

Can dust make my computer slow?

Absolutely. Dust clogs heatsinks and vents, causing your CPU and GPU to overheat and throttle (reduce speed to cool down). In Dhaka, where dust accumulation is 2–3× faster than in temperate climates, a laptop that has not been cleaned in 12 months is almost certainly thermal throttling under load.

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.