As it turns out, the most popular scenario that might end up causing this error is temporary information stored by your laptop battery or CMOS battery. This typically occurs after an unexpected computer crash and can be resolved by temporarily removing the battery in order to clear the bad data. However, the issue can also occur due to a bad connection between the hard drive and the connector slot on your motherboard. In this case, you should be able to fix the issue by opening the back cover, cleaning the HDD/SSD slots and ensuring that the connection is correctly established with the motherboard. In case you’re losing the Legacy boot, try accessing your BIOS settings and switching the default boot mode from Legacy First to UEFI First Mode. A lot of affected users have confirmed that this operation allowed them to get rid of the Detection Error on HDD0 (Main HDD) error. Under certain circumstances, this error message might be the result of an incompatibility between the Chipset Driver and the Intel RST driver. Fortunately, Lenovo already released a fix for this issue – you can enforce it by using the Auto_updater utility in order to update the HDD / SSD firmware to the latest version. If the issue started occurring while your computer while in Sleep or Hibernation mode, chances are you’re seeing this error due to the fact that your storage device is unable to recover from hibernation/sleep automatically. To fix this, you’ll need to switch to SATA Compatibility mode and boot normally before changing the configuration back to AHCI. There’s also one temporary fix that allowed a lot of affected users to boot normally – It involves running a couple of tests (Detection Error on HDD0 (Main HDD) error test and Detection Error on HDD0 (Main HDD) error test) before booting up normally. But this is only a temporary fix.
Removing the Battery or CMOS Battery
Another potential scenario that might end up spawning the Detection Error on HDD0 (Main HDD) error is a glitch that is maintained by the CMOS (Complementary Metal-Oxide Semiconductor) or by your laptop battery. If you previously made some hardware changes to your machine or your computer was forced to shut down unexpectedly, it’s possible that you’re dealing with an incorrect BIOS / UEFI preference – most commonly this issue is facilitated by conflicting overclocking information. In case this scenario is applicable to your current situation, you should be able to get the issue resolved by temporarily removing the battery that is maintaining this error – If you’re encountering the issue on a laptop, that’s your laptop battery. In case you see the error on a PC (desktop), you’ll need to open up the back cases and take out the CMOS battery manually.
Option 1: Removing the Laptop battery
Option 2: Removing the CMOS Battery
See if this operation is allowing you to get past the initial startup screen. If you’re still seeing the Detection Error on HDD0 (Main HDD) error, move down to the next potential fix below.
Ensuring that the HDD connection is solid
As it turns out, the Detection Error on HDD0 (Main HDD) is typically associated with a bad connection between the hard drive and the connector on your motherboard. If this scenario is applicable and as long as you’re not dealing with failing HDD or motherboard, you should be able to fix the problem by opening the cover of your PC / laptop and ensuring that your HDD is correctly connecting to your motherboard. In case you never did this before, here’s a quick step by step guide that will walk you through the entire process: In case you’re still seeing the same Detection Error on HDD0 (Main HDD) error, move down to the next potential fix below.
Enabling UEFI Boot Mode
A lot of Lenovo users have confirmed that they were finally able to get the issue resolved after they’ve accessed their BIOS settings and switch the default boot mode from Legacy First to UEFI first mode – This option will be named differently across different models, but chances are you’ll find it under Startup options in the main BIOS menu. If you are encountering this issue on a PC with a newer motherboard that’s using both UEFI and BIOS, you should be able to fix the issue by forcing UEFI First Mode. Here’s a quick guide on how to do this: In case you’re still encountering the same error message, move down to the next potential fix below.
Updating Lenovo’s HDD Firmware (if applicable)
In case you are encountering the Detection Error on HDD0 (Main HDD) error on a Lenovo Laptop (especially on a ThinkPad), there’s a very high chance that you’re having this problem due to a driver incompatibility between the Chipset Driver and Intel RST driver. Fortunately, Lenovo is aware of this problem and already released a hotfix for this issue. This utility will automatically scan for updates on the chipset and Intel RST driver, resolving most incompatibilities that might lead to the apparition of the Detection Error on HDD0 (Main HDD) error. IMPORTANT: In order to apply this fix, you need to take the OS HDD out and connect it to a healthy PC as secondary storage (don’t boot from it). To apply it on your computer, visit this link (here) and download Lenovo’s auto-updater. After the download is complete, use a utility like WinZip or 7zip to extract the contents of the Lenovo_Firmware Utility. After you download the Lenovo_Firmware Utility, double-click on fwwbinsd.exe and click Yes at the UAC (User Account Control) in order to grant admin access. Once the utility is open, select the problematic drive and click on Start update to install the firmware update. After the firmware was installed, connect the HDD back to the Computer where you previously encountered the Detection Error on HDD0 (Main HDD) error on and see if the issue is now resolved. In case you’re still seeing the same startup error, move down to the next potential fix below.
Waking the drive manually from Hibernation
According to several affected users, the Detection Error on HDD0 (Main HDD) error can also occur when an SSD or HDD is being stuck in Hibernation mode. This typically happens if there’s a power source or another factor contributed to the total loss of power. When this happens, there’s a chance that your storage device will be unable to recover automatically. If this scenario is applicable, you should be able to get the issue resolved by accessing your BIOS settings and changing the SATA integration to compatibility mode – this will serve the purpose of waking up the drive back up. After you do this and your HDD / SSD exits hibernation, you’ll need to go back into your BIOS settings and change the usage of SATA back to AHCI. Here’s a step by step guide that will allow you to do this: In case the same problem is still occurring, move down to the next potential fix below.
Doing Testing on Lenovo (Temporary Fix)
if none of the methods above have allowed you to fix the issue, and you are facing this with a Lenovo laptop, it’s very likely that you are facing this issue due to BIOS glitch. You should be able to fix it by updating the BIOS version on your Lenovo laptop. But in case you don’t want to do this (for various reasons), one temporary fix that will allow you to boot without encountering the Detection Error on HDD0 (Main HDD) error. But keep in mind that this is not a permanent fix. The vast majority of users facing this problem have reported that the fix below only resolved the issue temporarily. It’s very likely that even if the steps below allow you to boot normally, you will end up seeing the error message again at the next system startup. If you are determined of deploying this fix, follow the instructions below: If the error returns, it’s very likely that you are dealing with a failing HDD or SSD and you will need to take your PC to a technician in order to figure out what’s wrong.
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