How to Resolve Hard Disk Error 303 and 305

硬盘错误303和305通常是指在计算机或存储设备中遇到的特定问题。以下是这些错误的基本含义： - Hard Disk Error 303: 这个错误代码通常表示硬盘驱动器遇到了读取或写入问题。可能是由于硬盘上的坏扇区、数据损坏、硬件故障或者是控制器问题。这可能导致数据丢失，系统崩溃或其他相关问题。 - Hard Disk Error 305: 错误305通常与硬盘的电源管理有关。它可能意味着硬盘在尝试启动或运行时未能正确接收或处理电源请求。这可能是由于电源供应不稳定、硬盘内部故障或者与电源相关的设置问题。 这两个错误都需要及时解决，以避免数据丢失和可能对硬件造成的进一步损害。通常，解决方法可能包括使用磁盘检查工具、修复磁盘错误、更新驱动程序、检查电源连接或在严重情况下更换硬盘。如果不确定如何操作，建议寻求专业技术人员的帮助。

Hard drive disk errors 303 and 305 are diagnostic error codes. "Hard disk 1 quick 303" and "hard disk 1 full 305" are specific error messages indicating that the hard drive has failed, is non-functional, and requires immediate replacement.

Therefore, if you encounter such errors on your PC with the exact information shown on the screen, promptly backup the failing hard drive and opt for the best solution to upgrade to a larger hard disk using a new HDD or SSD.

"Startup test failed
Hard disk SMART error 301
Hard disk 1 Quick test error 303"

如何在出现303或305错误时备份硬盘数据

Once again, when a hard drive encounters a 303 or 305 error, it's nearing the end of its lifespan, and the solution usually entails replacing it with a brand new one. The issue here is that, quite often, you'll need to use a recovery disk to boot your computer in order to utilize backup and recovery software to create a backup image of files, photos, videos, and other data on the hard drive. This is because when a hard drive fails with these errors and contains the operating system, it becomes difficult to boot normally.

What if you don't have a recovery CD available? How can you address the issue in an emergency? Don't worry, the Todo Backup utility comes to the rescue. Just remove the failed hard drive and connect it to another functioning computer. Download the data backup software, click here, and create a bootable rescue media.

To create a bootable disk of Todo Backup tools, please follow the instructions carefully.

Step 1. Prepare a USB drive that can be written to and read from.

Step 2. Launch and install Todo Backup on Computer B.

Step 3. Locate and click on "Tools", then select "Create Emergency Disk".

Step 4. Select the Boot Disk location. You can choose to create an ISO file, a bootable USB, or a CD/DVD disc.

Step 5. Click "Create" to begin.

Upon successfully booting into Windows, you can now proceed with the hard drive and partition backup using tools from Todo Backup software.

Got the essential backups? Now you can turn off your computer and replace the faulty hard drive with the new one that you have prepared. To restore the backup you just made, run Todo Backup again, choose the image file and hit “Recover”. Your hard drive data will be back.