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How to fix bad sectors on a hard drive?

Bad sectors cannot be really fixed, but can be isolated or marked by tools to protect data. 1. Use the built-in chkdsk command of Windows to scan and mark bad sectors to avoid the system from continuing to write data; 2. Use third-party software such as CrystalDiskInfo, HDTune, Victoria to conduct in-depth detection and processing; 3. After discovering bad sectors, data should be backed up and replaced with the hard disk, because bad sectors are often a precursor to hard disk aging and the stability is difficult to recover.

Jul 12, 2025 am 12:36 AM

How to fix 'The Software Licensing Service reported that the license is not installed'

When you encounter the prompt "SoftwareLicensingServicereported that thelicenseisnotinstalled", it may be that the authorization is not activated correctly or the service is not installed. The solution is as follows: 1. Check the network connection to ensure that the Internet can be accessed normally, try to change the network environment or modify the DNS; 2. Manually reactivate the software authorization, reset the authorization status through the account management page or command line tool; 3. Repair or reinstall the authorization component, restart the "SoftwareLicensing" service and run the sfc/scannow command to repair the system files; 4. Check whether the version installed by the unofficial channel is misused. It is recommended to download the installation again from the official website after uninstalling.

Jul 12, 2025 am 12:35 AM

Is open-source software always free

Open source software is not always free. While most open source software is available for free due to community-driven, promotional use and threshold reduction, some projects are charged for additional services, such as enterprise version features, paid support, plug-in extensions, or hosting services. To determine whether the charge is charged, you need to check the pricing page, license agreement, version logo and community evaluation.

Jul 12, 2025 am 12:31 AM

open source software free

How to fix error code 0xC000000D

The 0xC000000D blue screen error can be fixed by the following steps: 1. Check the hard disk connection and run the chkdsk scan; 2. Use the installation USB drive to run the bootrec command to repair the boot; 3. Uninstall or roll back the problem driver; 4. Perform system restore or repair installation. This error is usually caused by hardware failure, driver conflict or system file corruption. It is recommended to check the hard disk status first, and then try the system repair tool, driver adjustment and recovery operations in turn. In most cases, it is possible to resolve without completely reinstalling the system.

Jul 12, 2025 am 12:30 AM

What is the difference between a portable app and an installed app

Choosing a portable application or installing an application mainly depends on the usage scenario. 1. Installing the application will integrate the system in depth, distributed in multiple directories, and may modify settings and add background services. Uninstalling requires system uninstallation tools; 2. Portable applications do not need to be installed, all files are concentrated in one folder, and the system settings are not changed during runtime. Delete only requires directly removing folders; 3. Installing the application is suitable for scenarios where automatic updates, deep system integration and offline functions are required; 4. Portable applications are suitable for users who use multiple devices, system diagnosis or prefer lightweight tools. Both have their own advantages and disadvantages and should be chosen according to specific needs.

Jul 12, 2025 am 12:26 AM

How to fix 'The specified path does not exist'

The main reason for the error "Thespecified pathdoesnotexist" is that the system cannot find the specified path. The solution is as follows: 1. Check whether the path is correct, pay attention to spelling, uppercase and uppercase, uppercase and special characters processing; 2. Confirm that the target directory does exist, and can be judged through manual access or scripts; 3. Use relative paths according to the situation to improve flexibility; 4. Troubleshoot permission issues and try administrator or sudo permission operations.

Jul 12, 2025 am 12:21 AM

Why is 5ghz wifi faster but has less range

5GHz Wi-Fi feels faster because its higher frequency band supports greater data throughput, but the transmission distance is not as good as 2.4GHz. 1.5GHz has a shorter wavelength and poor ability to penetrate obstacles, resulting in a smaller coverage range; 2. In contrast, 2.4GHz has longer wavelengths and strong diffraction capabilities, which are suitable for large space and multiple obstacle environments; 3.5GHz has 23 non-overlapping channels, with less interference and large bandwidth, and a speed of more than 1.3Gbps; 4.2.4GHz is easily congested due to widespread use, with only 3 non-overlapping channels; 5. It is recommended to use 5GHz at close range for high-speed experience, such as streaming media and gaming; 6. It is recommended to use 2.4GHz long distance or outdoors to ensure connection stability; 7. Support dual-band or triple-band routing

Jul 12, 2025 am 12:19 AM

Speed ??and range

How to fix 'The update is not applicable to your computer'

When you encounter a prompt that "update is not applicable to your computer", most of it is caused by mismatch in the system or hardware. Solutions include: 1. Make sure that the system version is consistent with the update package, and prioritize the use of Microsoft official updates; 2. Check whether the system type (32-bit/64-bit) matches; 3. Run sfc/scannow to repair the system files; 4. Check whether the hardware meets the update requirements, such as memory, disk space and TPM modules, etc.; 5. Enter the BIOS to check the relevant settings if necessary.

Jul 12, 2025 am 12:12 AM

How to fix error 0x80070035 the network path was not found

Error "0x80070035: Network path not found" is usually caused by network configuration problems and can be resolved by the following steps. 1. Make sure that network discovery and file sharing are enabled, and confirm that the device is connected to the same network; 2. Check whether the target device is powered on and shares resources correctly, and try to test connectivity through IP or hostname ping; 3. Temporarily turn off the firewall or antivirus software, confirm that it does not block file sharing, and allow relevant communications in the Windows firewall; 4. If the device relies on the old version of the protocol, enable SMB1.0/CIFS support; 5. Use the IP address or hostname to directly access the shared resources to bypass network browsing issues. In most cases, network access can be restored through these adjustments.

Jul 12, 2025 am 12:11 AM

What is software telemetry and how can I opt-out

Telemetry is the software that collects user behavior data to improve the functionality of the product, but may involve privacy issues. It records function usage, crash reports, performance metrics and hardware information, etc., and is commonly found in operating systems, browsers, development tools and free applications. To disable telemetry, you can turn off diagnostics and feedback in Windows settings, disable telemetry options in VSCode, turn off usage reports and crash reports in Chrome, and some Linux distributions can be achieved by disabling specific services or modifying configuration files. In addition, some open source tools, cloud editors and mobile applications may also enable telemetry by default, and require in-depth settings or reading the privacy policy to be completely turned off.

Jul 12, 2025 am 12:01 AM

What is a 'headless' software

Header less software refers to a system or application without a user interface. It communicates with other systems through APIs to realize backend automation processing. Its core features are API-first design, front-end and back-end separation architecture, and no built-in UI layer. It is commonly found in less CMS, browsers and e-commerce platforms. It has the advantages of high flexibility, good performance, and easy to expand. It is suitable for multi-terminal unified content management or multi-platform interaction scenarios. Choosing a headless less solution can improve customization capabilities, but it also requires more development investment.

Jul 11, 2025 am 01:21 AM

Why is my software installation stuck

Software installation stuck is usually caused by insufficient system resources, file conflicts or permission problems, and can be resolved by itself in most cases. 1. Check the system requirements and close the background program to free up memory and disk space, restart the computer to clear temporary failures; 2. Check the installer behavior, close the antivirus software, uninstall the old version and run the installer as an administrator; 3. Try changing the installation path or creating a new user account to troubleshoot file system or user configuration issues.

Jul 11, 2025 am 01:04 AM

What is an API and how does it relate to software

API is a bridge of communication between software. Its full name is ApplicationProgrammingInterface, which acts as a "middleman" for data and function exchange between different systems or applications. Its core role is to enable software to collaborate safely and efficiently without understanding each other's internal implementations. In software development, 1. Developers can reuse existing functional modules through APIs to save development time and improve system stability; 2. Common usage scenarios include user login, data acquisition and payment integration; 3. The API workflow is divided into three steps: the client initiates a request, the API querys the server, and the server returns results. Although it is invisible, it is a key link in the coordinated operation of modern software.

Jul 11, 2025 am 01:04 AM

How to block ads on all browsers

To block browser ads, you can use ad blocking plug-ins (such as uBlockOrigin or AdGuard), enable the browser's own ad blocking features (such as Edge, Brave, and Safari), or modify the Hosts file to achieve system-level blocking. On mobile devices, you can use browsers or dedicated apps that support ad blocking. Specific steps: 1. Install the ad blocking plug-in; 2. Set up the built-in blocking function of the browser; 3. Modify the Hosts file to block the ad domain name; 4. Select a suitable browser or App on the mobile side to block ads.

Jul 11, 2025 am 01:03 AM