Ошибка active partition not found

Are you one of those who get stuck in the “active partition not found” issue? Do you wonder how to fix this issue? If so, you can pay attention to this post. In this post, MiniTool Partition Wizard introduces several effective methods that may help you work this issue out.

What Is an Active Partition

An active partition is a partition on a hard drive that is set as the bootable partition, containing the startup files of the operating system. Without the active partition, you cannot boot your system successfully. There can be only one active partition in your Windows PC to boot the system.

If you have multiple hard disks on the PC, you can mark one partition as active on each disk. However, only the active partition on the first hard disk can be named the bootable partition and used to start up Windows.

Reasons for Active Partition Not Found

If there are any problems with the active partition, it’s possible for you to receive the error message that says “Active partition not found! Press any key” while booting the PC. This error can be caused by various reasons. Here, we summarize a couple of possible causes below.

• The Basic Input Output System (BIOS) settings are set improperly
• The system disk on your PC cannot be recognized
• Windows system files get corrupted or lost
• The partition that contains the boot files is inactive
• The Master Boot Record (MBR) disc is broken

Based on the above reasons for the “active partition not found” issue, some feasible troubleshooting fixes are listed in this post. If you are one of those who have no idea how to fix this issue, you can keep reading to solve your problem.

Methods for Fixing Active Partition Not Found

When you are facing the “active partition not found press any key” issue, it’s recommended that you follow the methods below to get rid of this issue.

Method 1: Make the BIOS Force Detect IDE

Once the active partition not found error comes out, the first thing you ought to do is to force detect the following IDEs. By doing so, you can make the BIOS recognize the boot drive in your Windows.

• Primary IDE Master
• Primary IDE Slave
• Secondary IDE Master
• Secondary IDE Slave

Step 1: Power on your computer.

Step 2: Press and hold the correct hotkey quickly until you get into the BIOS screen. To find out the particular hotkey for your PC, you should check your user manual in advance.

Step 3: Once you boot your computer into the BIOS, go to the Advanced tab. Then highlight IDE Configuration and press Enter to continue. 

Step 4: In the next window, find the above four IDEs and check if they are detected. If they are shown as None or Not Detected, you need to set None or Not Detected to Auto.

Step 5: After that, exit the BIOS and restart your computer to see if the error is resolved.

Method 2: Reset the BIOS to Default Settings

As mentioned earlier, the improper BIOS settings may lead to the active partition not found error. Therefore, you can also try to fix this issue by resetting the BIOS settings to default. To do this, you should enter the BIOS and go to the Exit tab. You may find the Load Setup Defaults option. Select it and then click Yes in the prompted window to confirm the operation.

Once you finish the operation, restart your computer to check if the “active partition not found press any key” issue is fixed.

Method 3: Repair the Corrupted System Files

The “active partition not found” issue may also happen if there are certain corrupted or missing system files in your Windows. In this case, you should take action to fix these system files via Startup Repair. To perform this operation, you need to enter Windows Recovery Environment (Windows RE) with Windows installation media or just follow the steps below.

Step 1: Turn off your computer and then turn it on. Once the Windows logo appears on your screen, press and hold the Power button to turn off the computer.

Step 2: Repeat the action of turning on and turning off your computer until a blue screen with Recovery appears.

Step 3: Click the Advanced options button, and then select the Troubleshoot option in the next window that shows Choose an option.

Step 4: Navigate to Advanced options > Startup Repair.

Step 5: Wait patiently until the process ends. Then restart your PC.

Method 4: Set the System Partition as Active

If the system partition that stores the boot files is inactive, you may receive the “active partition not found press any key” error message as well. On this occasion, you have to set the partition as active. Here’re two possible ways you can try to perform this operation.

Way 1: Use the Diskpart Utility

Diskpart is a Windows built-in utility that can help you manage your partitions and disks on your Windows. To set the system partition as active using this tool, you can follow the step-by-step guide below.

Step 1: Boot your computer into the Windows RE and then go to Troubleshoot > Advanced options > Command Prompt.

Step 2: After you enter the Command Prompt window, type the following commands one by one and press Enter after each.

• diskpart
• list disk
• select disk N (replace N with the disk where the system partition is located)
• list partition
• select partition * (* is the number of the system partition on your PC)
• active
• exit

Step 3: After that, restart your system to check if the error is removed.

[Fixed] System Reserved Partition Not Showing in Disk Management?

Way 2: Use MiniTool Partition Wizard

Although it’s convenient to set the partition as active with Diskpart, sometimes you may encounter an error while using this utility. Therefore, to avoid unexpected issues, we highly recommend you activate the partition via a piece of third-party disk partition software like MiniTool Partition Wizard.

How To Fix DiskPart Has Encountered An Error — Solved

MiniTool Partition Wizard is a professional partition manager that enables you to perform various operations. For instance, you can create/format/resize/delete partitions, set the partition as active/inactive, migrate OS to SSD/HDD, etc.

To begin with, you should create a bootable USB flash drive first to boot your computer. There is a detailed tutorial for activating the partition available.

Step 1: Download and install MiniTool Partition Wizard on the computer that can work properly.

Free Download

Step 2: Connect the prepared USB drive to the computer. Then launch this program to enter the main interface and click Bootable Media at the top-right corner.

Step 3: In the pop-up window, click WinPE-based media with MiniTool plug-in.

Step 4: After that, select USB Flash Disk and then click Yes to continue.

Step 6: After the process ends, click Finish and eject the USB drive from the computer.

Step 7: Boot the problematic computer from the bootable USB flash drive you have created. Wait a while and you will get into MiniTool Partition Wizard automatically.

Step 8: Right-click the target partition and select Set Active. Alternatively, you can also highlight the specific partition and then select Set Active from the left action panel.

Step 9: Finally, don’t forget to click Apply to save the changes.

Method 5: Repair MBR

MBR is a special type of boot sector at the very beginning of your boot drive that allows you to boot your computer successfully. If the MBR gets corrupted, you may fail to boot the system and be bothered by the “active partition not found” error. To solve this error, you’d better try repairing the MBR. This way requires you to enter the Windows RE as well.

Step 1: Go to Troubleshoot > Advanced options > Command Prompt in Windows RE.

Step 2: After getting into Command Prompt, type the following commands sequentially and press Enter after each one.

• bootrec.exe /fixmbr
• bootrec.exe /fixboot
• bootrec.exe /scanos
• bootrec.exe /rebuildbcd

Step 3: Once done, restart your computer. You might be able to boot your PC normally at this time.

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To Sum Up

This post explores why the “active partition not found” error happens and how to solve this error. When you are facing this error, you can keep an eye on this post to find a workable solution. If you have any problems with this error, you can leave them in the following comment part.

Are there any issues while using MiniTool Partition Wizard? Well, you can contact us for help via [email protected]. We will reply to you as soon as possible.

Are you facing the Active Partition Not Found in Windows issue when you open the Disk Management tool in Windows? If yes, stay connected with us to get assistance fixing this issue effectively.

An active partition is a partition present on the boot drive on Windows. This partition usually includes information that helps BIOS or UEFI discover where Windows is installed and how to boot into Windows. Every Windows installation can only set one partition as an active partition for successfully booting it.

The guide will include all those reasons in detail and let you know about the fixes.

Why does «Active Partition Not Found» Happen

Active Partition Not Found is one of Windows’s most annoying error issues that prevent you from accessing Windows. If you are eager to know the main reasons behind the same, we are enlisting the leading ones for you.

1. Inactive Partitions

The partition that includes the operating system must be active so that a computer system can boot up conveniently. The presence of inactive partitions in the boot files may lead you toward the annoying error issue Active Partition Not Found. 

2. Damaged MBR Disk

A damaged MBR disk may also lead you toward the arrival of one of the most annoying error issues, i.e., Active Partition Not Found. The MBR is a particular type of boot sector present at the start of the disk. 

3. BIOS does not recognize the system disk

If your system disk fails to be recognized by the BIOS, it may lead you to the annoying error issue, Active Partition Not Found. 

4. Improper BIOS Settings

Improper BIOS settings may also lead you to the most annoying error issue. It may cause different types of problems in your Windows, and one needs to set the BIOS perfectly to default settings to fix it perfectly.

5. Corrupted system files

Corrupted system files also trigger the Active Partition Not Found issue. Ensure your Windows system files are valid and can ideally start boot issues. The system file can get corrupted because of the abrupt shutdown, malware affecting system files, etc.

Now that you know the possible reasons behind the same, you can quickly search the related solutions ideally.

How to Fix the «Active Partition Not Found» Error

It doesn’t matter which computer system or Windows you are using now; we are here to provide solutions that will work effectively on all platforms effortlessly:

1. Fix 1. Set System Partition Active
2. Fix 2. Rebuild MBR
3. Fix 3. Force Detect IDE
4. Fix 4. Reset BIOS Settings
5. Fix 5. Repair System Files

All of the fixes mentioned above are efficient and ensure users have perfect and smooth access to their devices effortlessly.

Fix 1. Set System Partition Active

Setting the system partition active is a manageable task now. When it comes to charging system partitions, the primary tool that comes to mind is the EaseUS Partition Master. This disk management software offers the Set Active function to change the active partition quickly. 

It is an all-in-one free partition manager tool designed to fulfill individual users’ needs effectively. And it is also easy to use.

Step 1. Run EaseUS partition manager software. On the disk map, right-click the target partition and choose «Advanced».

Step 2. Then, select «Set Active» from the drop-down menu. Click «Yes».  And choose «Execute 1 Task(s)» and click «Apply».

Fix 2. Rebuild MBR

Master Boot Record is part of the Booting process, which allows the BIOS or UEFI to figure out Windows installation. If it gets corrupt, PC the UEFI will be clueless. EaseUS Partition Master offers a tool to rebuild MBR without losing data. Using the Rebuild MBR, you can select the drive and the OS type and rebuild it.

Step 1. Create a WinPE bootable disk

• Launch EaseUS Partition Master, and click «Bootable Media» on the toolbar. Select «Create bootable media».
• Click «Next» to finish the process.

Step 2. Boot EaseUS Partition Master Bootable USB

• Connect the bootable USB or CD/DVD to your PC. 
• Press F2 or Del when you restart the computer to enter the BIOS screen. Set and boot your computer from «Removable Devices» or «CD-ROM Drive». And then EaseUS Partition Master will run automatically.

Step 3. Rebuild MBR

• Click «Toolkit» and choose «Rebuild MBR».

• Select the disk and the type of MBR. Then, click «Rebuild».

• After that, you can see «MBR has been successfully rebuilt on Disk X».

If you meet other partition errors or disk errors, EaseUS Partition Master can save you time and energy to finish this task. For example, it can find bad sectors and fix the corrupted file system by running disk surface test.

 Fix 3. Force Detect IDE

IDE interface is an industry-standard adapter connecting IDE devices and helps them communicate with the BIOS or UEFI. It used to be an industry standard a few years ago. HDD IDE is a storage device connected to BIOS using the IDE cable. If your PC detects everything but IDE HDD (on which the Active Partition exists), you will receive the Active Partition Not Found error. Follow the steps to fix it.

Step 1. Restart the computer and press F2, F8, or F10 to enter BIOS.

Step 2. Then go to the Advanced tab option and then change the status of the following four IDEs to Auto from the Not Detected options.

• Primary IDE Master
• Primary IDE Slave. 
• Secondary IDE Master
• Secondary IDE Slave

Fix 4. Reset BIOS Settings

Resetting BIOS settings restores the same to the last saved configuration. The process is quite helpful in reverting your system once you have added some changes to it. All you have to do here is:

Step 1. Restart your computer system and then enter BIOS successfully.

Step 2. Low locate the option «Load Optional Defaults» under the Exit option to move further with the process.

Step 3. Once done with the above process now, hit the F10 key. It will help you in saving and exiting the BIOS settings ideally.

Fix 5. Repair System Files

If you have gone through the above solutions but didn’t have found an absolute solution for your issue, you can go for repairing system files perfectly. Repairing system files helps in enabling the smooth functioning of Windows. The things you have to do here are:

Step 1. Install the Windows 10 installation disc on your device, then boot your computer system from it.

Step 2. Select the correct time and keyboard type on your device, and tap the Next button.

Step 3. Once done with the above process, select Repair your computer system to move further.

Step 4. Go to the Troubleshoot option, followed by tapping on the Advanced options.

Step 5. Once done, tap the Startup Repair option to proceed with the process.

Wait for the repair process to complete, and once done, enjoy seamless access over your Windows.

Conclusion 

I hope you have fixed the active partition not found issue now. It is one of the most annoying issues that Windows users face and doesn’t allow the users to get access to Windows. We have provided you with different methods to resolve this issue efficiently.

However, if you feel it is difficult to go through the complicated processes, EaseUS Partition Master is a great option to ease things up. It is a features-loaded option that will ease up your journey with Windows and will ease up something for you. The platform is simple and easy to download and install, and it hardly takes a few clicks to enable the different things efficiently. 

FAQs About «Active Partition Not Found» Error 

If you have gone through the different detailed processes very carefully and still have left with some queries, here we are with the top FAQs that will ease things up for you.

1. How do I make a partition active in BIOS?

Making partitions active in BIOS is a minor deal. All you have to do here is:

Step 1. Launch the Command Prompt on your device

Step 2. Type the following commands followed by tapping on the Enter button:

• diskpart
• list disk
• select disk 0
• list partition
• select partition 1
• active

2. Why is the partition not active?

Suppose the partition on your Windows is not active. In that case, the chances are higher that your Windows does not have any primary partition or you mistakenly marked some other section active. Check out the mark partition as active grayed out to eliminate the same.

3. What does active partition mean?

The active partition is the partition that allows the computer to startup. It is always advised to keep the system partition or volume partition as a primary partition and mark it active to enable seamless startup processes.