What is the reason why the computer has no sound?

If you want to view the graphics card driver version on your computer, you can do it by: 1. Use Device Manager to view: Win X to open the Device Manager, expand the display adapter, right-click the graphics card to select properties, and view the version and date in the driver tab; 2. View through DirectX diagnostic tool: Win R enter dxdiag to view the driver version and related graphics information in the display tab; 3. Use the official software of the graphics card manufacturer to query: such as NVIDIA's GeForceExperience, AMD's Radeon Software or Intel's Driver&Support Assistant, the main interface will display the current driver status and support updates; 4.

To change the problem of Windows software being installed on C drive by default, there are three methods to solve it: First, modify the system user folder path, which is suitable for new users. The default folder such as "document" and "download" will point to the new path, but it will not affect the installation path of the third-party software; Second, use symbolic links, first install to the C drive and then move to other disks, and create links to deceive the system identification; Third, manually select the path during installation, which is the most common method, and most software supports custom installation directories. Note that the path does not contain Chinese or special characters, so you need to run the installer as an administrator to avoid permission issues.

Microsoft Edge can be uninstalled, but because it is a Windows system component, it cannot be uninstalled directly through the control panel like ordinary software. 1. Use a command prompt (administrator permissions) to uninstall the Edge installation package; 2. You can disable or replace Edge with the help of third-party tools; 3. Enterprise users can manage through Group Policy. Even if uninstalled, it may still be redeployed when the system is updated. Alternatives include: setting other browsers as default, manually removing the Edge icon, and hiding Edge using scripts. Users suitable for uninstallation include system geeks, enterprise unified management needs, and low-end device users who want to release resources. Ordinary users only need to change the default browser to avoid interference.

If you want to remotely turn off the router Wi-Fi, you must first confirm whether the router supports remote management; if it does not support it, it can be achieved through a smart socket power outage; advanced users can also consider flashing in custom firmware. The specific steps are as follows: 1. Check whether the router has remote management functions, such as the manufacturer's supporting app or cloud management functions; 2. If it is not supported, purchase and set up a smart socket and remotely cut off power through its app; 3. For technical users, you can install firmware such as DD-WRT or OpenWRT to obtain remote control permissions. Different methods have their own advantages and disadvantages. Please weigh them according to your own needs when choosing.

System restore point setting methods include manual creation, dependency automatic creation, and management of storage space. 1. Manual creation requires system protection to enable in "Create Restore Point", allocate 5% disk space and click "Create" to name the restore point; 2. The system will automatically create restore points when installing updates or changing settings, but do not guarantee comprehensiveness; 3. The restore point occupies no more than 5% of the system disk space by default, and the old version will be automatically cleaned, and storage can be managed by adjusting the upper limit.

A firewall is a network security system that monitors and controls network traffic through predefined rules to protect computers or networks from unauthorized access. Its core functions include: 1. Check the source, destination address, port and protocol of the data packet; 2. Determine whether to allow connections based on trust; 3. Block suspicious or malicious behavior; 4. Support different types such as packet filtering firewalls, status detection firewalls, application layer firewalls and next-generation firewalls; 5. Users can enable built-in firewalls through operating system settings, such as Windows Security Center or macOS system preferences; 6. The firewall should be used in combination with other security measures such as strong passwords and update software to enhance protection.

Yes, WiFi providers can see some of your browsing information. Specifically: 1. The WiFi provider can see the domain name, Internet time period, device type and traffic size of the website you are visiting, but cannot view the specific content of the HTTPS website; 2. The home WiFi administrator can also view the connection records and some traffic content through the router background or parent control software; 3. Methods to protect privacy include using HTTPS websites, connecting to VPNs, enabling browser privacy mode, and avoiding sensitive operations on public WiFi; 4. The company or school network is usually more stringent, and may record logs, install a proxy server, or even force decrypt HTTPS traffic, so you should try to comply with regulations and avoid visiting irrelevant websites.

When encountering the blue screen error VIDEO_TDR_FAILURE(nvlddmkm.sys), priority should be given to troubleshooting graphics card driver or hardware problems. 1. Update or rollback the graphics card driver: automatically search and update through the device manager, manually install or roll back to the old stable driver using NVIDIA official website tools; 2. Adjust the TDR mechanism: Modify the TdrDelay value in the registry to extend the system waiting time; 3. Check the graphics card hardware status: monitor the temperature, power supply, interface connection and memory module; 4. Check system interference factors: run sfc/scannow to repair system files, uninstall conflicting software, and try safe mode startup to confirm the root cause of the problem. In most cases, the driver problem is first handled. If it occurs repeatedly, it needs to be further deepened.