Originally published on wesleyschaeppi.com.

Are you tired of pressing the power button and having enough time to brew a fresh cup of coffee, just to come back and still be waiting for the login screen?

It is 2026, and honestly this should be a thing of the past. If your system feels like it is running through molasses and applications take an eternity to load, you are not alone. Here is a breakdown of the most common culprits behind a slow computer and how to fix them.

1. The Spinning Disk Bottleneck

If your computer is a few years old and healthy but just slow, there is a good chance your system is still operating on a traditional hard disk drive, or HDD. HDDs are mechanical, meaning they rely on moving parts that naturally wear down, degrade, and slow down over time.

If you are still on an HDD, the single best decision you can make is upgrading to a solid state drive, or SSD, or an NVMe M.2 drive.

Speed: SSDs and NVMe drives perform anywhere from 7x to 70x faster than traditional hard drives.
Payoff: Your computer will boot up in less than a minute.

When you make the switch, you will have to decide between two paths:

Cloning: This creates an exact replica of your data and applications on the new drive. You keep everything exactly where it was, just exponentially faster.
Fresh OS install: About 50% of my customers opt for a clean, fresh install of Windows. While you do have to reinstall your applications, it completely eliminates digital clutter and gives your computer that authentic “brand-new” feel.

Critical Data Safety Disclosure

Before touching any hardware or attempting a drive upgrade, evaluate the health of your current system. If your computer is freezing constantly, making clicking noises, or you suspect the drive is actively failing, stop immediately. Back up your critical data to an external drive or cloud storage right away, or seek professional IT assistance. Heavy operations like cloning a failing drive can cause permanent data loss.

2. You Are Running Out of Digital Brain Space

If you already have an SSD but your computer still stutters when you have multiple things open, your memory might be maxed out.

To check this, open Task Manager by pressing Ctrl + Shift + Esc and click on the Memory column. If your usage is consistently over 75%, it is time for a RAM upgrade.

How much RAM do you actually need?

16GB: Good for most everyday users and standard office work.
32GB+: The sweet spot for power users, heavy multitasking, and anyone who keeps a lot of browser tabs open simultaneously.

3. Your Computer Is Thermal Throttling

Computers, like humans, do not perform well when they overheat. Thermal throttling occurs when your processor literally slows itself down to prevent its own hardware from overheating.

If your fans sound like a jet engine taking off, it is time to check your temperatures:

To check idle temperatures, use a free tool like HWMonitor.
To stress-test, use a tool like AIDA64 to see how your CPU handles a heavy workload.

If your system is running hot, the culprit is usually dust buildup in the heatsink or dried-up thermal paste between the processor and the cooler.

The maintenance rule of thumb: Dust out your PC every two months, especially if you have pets, and replace your thermal paste every 3 to 4 years to keep things running cool and fast.

Step-by-Step: How to Clone Your Drive With Macrium Reflect

If you want to upgrade your drive without losing your files, preferences, and programs, cloning is the easiest route. Here is how to do it safely with Macrium Reflect. There are many other good options for consumers. Macrium Reflect is one of my favorites, with Clonezilla and EaseUS following. If you are upgrading to a Samsung drive, I recommend using the migration feature in Samsung Magician.

Install Macrium Reflect on the computer you would like to clone.
Launch Macrium and select the source drive, which is your old, slow drive.
If you are cloning from a larger drive to a smaller SSD, uncheck the partition directly after your main data partition, such as C: or D:. Macrium needs to be able to resize the main partition to fit the smaller drive, and unchecking the trailing partition allows it to do this.
Select “Clone this disk…” located just under the selected source drive.
Select your destination disk, follow the prompts, and double-check that your source and destination disks are correct before clicking Finish.
Allow the clone to finish. Once completed, power down your PC, unplug the original drive, install the freshly cloned drive, and boot it up to verify functionality.
Once you are happy with the performance, remove Macrium Reflect from the machine.

Troubleshooting Potential Errors

If your original drive is older or showing early signs of health degradation, the clone may fail with an error such as MFT Error 6. If this happens, Macrium will halt and ask you to run a disk check, or chkdsk.

Because Windows will not allow you to fully repair a drive while actively using it, you will need to schedule chkdsk to run during a reboot:

Click the Windows Start button, type cmd, right-click on Command Prompt, and select Run as administrator.
In the command prompt window, type the following command exactly and press Enter:
```
chkdsk /x /f /r
```
The system will notify you that the drive is currently in use and ask if you want to schedule the volume to be checked on the next reboot. Type Y and press Enter.
Reboot your computer. Windows will automatically begin the disk repair process before loading the desktop. Let this process finish completely, as it can take some time depending on the drive’s condition.
Once the computer boots back into Windows, reopen Macrium Reflect and attempt your clone again.