Top Computer Problems with Solution For IT, Desktop, Help Desk Support

Top Computer Problems with Solution For IT, Desktop, Help Desk Support

Hello guys in this blog, I will discuss with you the most common computer problems and their solutions. So, the first problem that is commonly observed is that our computer slows down over time. That's a very big problem.

So, for that, you should first know that all our software and documents are basically saved in our C drive, which we call the primary drive. And gradually, as we work, install software, and save files, the C drive will fill up. As soon as the C drive is full or nearly full, the system will automatically start to slow down. 

So, what is the solution? 

The first solution is to check the Recycle Bin. Empty the Recycle Bin, because the Recycle Bin is a folder where all our deleted files are saved. Deleting them will release some memory. 


Besides that, go to the Control Panel and uninstall any unnecessary software that you have installed and are not using. This will also free up some space.

Additionally, there are some temporary files in our system with the extension ".tmp" so open run box with the help of ctrl + R and type without "%temp%". 

You can search for them and delete them.


Furthermore, if you want to check the size of your C drive, every Windows computer has a folder called My PC or Computer. If you open it, you will see something like this (I have shared a small diagram). So, here, the C drive shows how much free space is available out of 111 GB. This means that your hard disk drive is mostly full, so you need to reduce some data from it. 


Because if it goes any higher, you can see it has turned red. Red means that the storage is quite full, and you should reduce the amount of storage used. Besides this, this is how you check the drive. Besides that, you should know that there are some software programs and applications that launch automatically as soon as you start your computer.


To see these, you can search for "System Configuration Tool" in Windows. When you search for this, a window like this will open. It has several tabs: General, Boot, Services, Startup, and Tools. By going to the Startup tab, you can see which applications and software programs are loading automatically when Windows starts. You can disable them by clicking the checkboxes, or you can disable all of them. However, my recommendation is that if you don't know which ones to disable, please don't do this. Otherwise, your system might encounter problems.

Computer Hanging

Now, a computer can hang at any time, and the main reasons for a computer hanging are:

First, a virus infection. The solution for a virus is antivirus software, so you should have updated antivirus software on your computer. Many antivirus programs are available in the market. Windows also comes with its own built-in Windows Defender.

Install Defender, and it will automatically provide virus protection. Otherwise, there are other options like Quick Heal, K7, etc.  Many such antivirus software programs are available that you can download to protect your system from viruses. Besides that, a faulty SMPS (Switched-Mode Power Supply) can also cause problems.

The SMPS is the power supply unit of our system; it's located inside the CPU or cabinet. If your SMPS is faulty, the system can hang. The only solution is to replace the SMPS with a new one to solve this problem. You should know that our computers have many cooling fans, such as one on the SMPS. Besides that, there's also a fan on the CPU chip, the processor. If any of your fans are faulty, it's better to replace them with new ones so that your system doesn't hang. Furthermore, if the operating system becomes corrupted, if Windows gets corrupted, our system can also hang in that case. In that situation, you should install a fresh copy of the operating system.

Slow Software Performance

The next problem is slow software performance. What should you do if your software is running slowly? There are mainly two reasons why software runs slowly. The first is that your system's processing power is slow. Your CPU is old and outdated, and the new or heavy software isn't running properly on it. In that case, you should install a new motherboard and CPU, which can solve your problem. Besides that, if your system has insufficient RAM, that can also be a reason for slow software performance. In that case, you should increase your RAM, which can solve your problem to some extent.

Here, I've provided a small table of different processors available in the market. For example, the Core i3 and Ryzen 3. The Core i3 is an Intel product, and the Ryzen is an AMD product... Both of these products are available in the market. If we talk about CPUs or processors, you can see that it's clearly mentioned that the Core i3 and Ryzen 3 are for basic operations. If you need it for domestic use, you can opt for this processor. If you have a mid-level use case, like in an office, and you think you'll be using your laptop or PC quite a bit, then you can get an i5. If you want a gaming laptop or need to use high-end graphics, you can purchase a Core i7 or Ryzen 7. 

And if you have professional requirements, then the i9 or Ryzen 9 are both available options in the market. These are the different types of CPUs available. The table also provides information about their clock speed and the number of cores. So, you can choose any CPU according to your requirements.

Blue Screen Problem

The blue screen problem isn't very common, but it does occur. The screen looks something like this, and it usually displays an error code. So, what should you do in this case? This problem can arise due to two reasons. First, it could be a RAM issue. In that case, you need to detach the RAM from the motherboard and then reattach it. 

This might solve the problem. If it doesn't, you'll need to replace the RAM. Besides that, this problem can also be related to Windows, a hardware issue, or a driver problem. By looking at the error code, you'll get an idea of ​​what the error is. Search for that error code online, on Google, and you'll find all the information you need on how to resolve the issue.

Reboot and Select Proper Device Message

Reboot and select proper device message. This is what it looks like. Now, the reason for this is quite clear.

There are two possible reasons. Either the bootable disk was not selected, or the operating system is corrupted. If the bootable disk is not selected, then as soon as the system starts, press the F8 or Delete key on your keyboard to open the startup screen. From that screen, you can choose the proper bootable disk, which will solve the problem. And if your operating system is corrupted, you will need to reinstall the operating system, which will also resolve this issue. 

Internet Not Working

The internet is not working on our PC/laptop. There could be two reasons for this. The first is a problem with your internet service provider. If the problem is on their end, you'll need to contact them. The second possibility is a problem with your hardware.

Your router might be faulty, there might be a problem with the modem, a wire might be broken, or there could be some other reason. So what do you need to do?  You'll need to repair or replace any hardware or software that's causing the problem. This should resolve your internet connectivity issues. 

Hard disk failure

Hard disk failure is one of the most common and critical issues faced by IT Support, Desktop Support, and Helpdesk Engineers. A failing hard drive can lead to system crashes, data loss, slow performance, and business downtime.
Understanding the symptoms, causes, and troubleshooting steps is essential for every support engineer.

What Is Hard Disk Failure?

Hard disk failure occurs when a storage device (HDD or SSD) stops functioning properly and can no longer read or write data reliably.
This failure can be partial (system still boots but works slowly) or complete (system does not boot at all).

Common Symptoms of Hard Disk Failure

• As an IT support engineer, you should watch for these warning signs:
• System boot failure or “No boot device found”
• Frequent system hangs or blue screen errors
• Unusual clicking or grinding noise (HDD)
• Very slow file access or application loading
• Files getting corrupted automatically
• SMART errors during startup

Disk not detected in BIOS

Types of Hard Disk Failures

1. Logical Failure

• Caused by corrupted file system, malware, or improper shutdown
• Disk is physically fine
• Often recoverable using software tools

2. Mechanical Failure (HDD)

• Caused by damaged platters, read/write head crash
• Produces clicking noise
• Usually requires replacement

3. Electronic Failure

• PCB or controller board damage
• Disk not detected at all

4. SSD Failure

• Controller failure or memory wear-out
• Sudden data loss without warning
• Common Causes of Hard Disk Failure
• Power fluctuations or sudden power loss
• Overheating due to poor ventilation
• Physical shock or dropping the laptop
• Malware or ransomware attacks
• Bad sectors increasing over time

Aging hardware (end of disk life)

How IT Support Engineers Diagnose Hard Disk Issues

Step 1: Basic Checks

• Check disk detection in BIOS/UEFI
• Verify SATA / power cable connections
• Try connecting disk to another system

Step 2: Software-Level Checks

• Run CHKDSK in Windows
• Check SMART status using tools
• Review Event Viewer logs

Step 3: Performance Analysis

• Monitor disk usage in Task Manager
• Check read/write speed degradation
• Troubleshooting Steps for Desktop Support Engineers
• Backup critical user data immediately
• Run disk repair tools if logical failure
• Scan system for malware
• Reinstall OS if file system is corrupted
• Replace hard disk if mechanical failure is confirmed
• Restore data from backup after replacement
• Best Practices to Prevent Hard Disk Failure
• Always maintain regular data backups
• Use UPS to prevent power-related damage
• Keep system temperature under control
• Avoid improper shutdowns
• Monitor disk health periodically
• Upgrade from HDD to SSD for better reliability

When Should You Replace the Hard Disk?

Replace the disk if:

• SMART status shows failure
• Bad sectors keep increasing
• System crashes continue after OS reinstall
• Disk is older than 4–5 years (HDD)

Role of IT Support During Hard Disk Failure

An IT Support Engineer must:

• Minimize downtime
• Communicate clearly with the user
• Follow data security policies
• Escalate to vendor if under warranty
• Update asset and incident records

Disclaimer