When Windows cannot detect a second monitor, first check whether the physical connection is normal, including power supply, cable plug-in and interface compatibility, and try to replace the cable or adapter; secondly, update or reinstall the graphics card driver through the Device Manager, and roll back the driver version if necessary; then manually click "Detection" in the display settings to identify the monitor to confirm whether it is correctly identified by the system; finally check whether the monitor input source is switched to the corresponding interface, and confirm whether the graphics card output port connected to the cable is correct. Following the above steps to check in turn, most dual-screen recognition problems can usually be solved.

If you want to know the computer configuration, you can view it through three methods: Task Manager, System Information and Third-party Software. 1. Press Ctrl Shift Esc to open the task manager and switch to the "Performance" page to quickly view basic information of CPU, memory, disk and GPU; 2. Enter msinfo32 through Win R to open the system information tool to obtain a complete list of software and hardware and software and support export; 3. Use third-party software such as CPU-Z, GPU-Z or HWiNFO to detect the complete configuration in one click and most of them can be used without installation.

To display hidden files and folders, you can achieve it in the following three ways: 1. Click the "View" tab in File Explorer and check "Hidden Projects" to temporarily display hidden content; 2. Set the global display of hidden files through folder options, and the path is "View" → "Options" → "View" tab to select "Show hidden files, folders and drives" in the tab; 3. Advanced users can modify the Hidden item value to 1 through the registry to take effect permanently, and the registry must be backed up before operation. The above method is suitable for different usage scenarios and can be selected according to your needs.

The key steps to install PHP on Windows include: 1. Download the appropriate PHP version and decompress it. It is recommended to use ThreadSafe version with Apache or NonThreadSafe version with Nginx; 2. Configure the php.ini file and rename php.ini-development or php.ini-production to php.ini; 3. Add the PHP path to the system environment variable Path for command line use; 4. Test whether PHP is installed successfully, execute php-v through the command line and run the built-in server to test the parsing capabilities; 5. If you use Apache, you need to configure P in httpd.conf

Mapping network drives can be implemented on Windows in three ways. 1. Use "This Computer" to map directly: Open Explorer, click "Map Network Drive", enter the correct format network path and check "Reconnect when logging in". 2. Quick mapping with the command line: implement it through the netuseZ:\\IP address\shared folder/user:user name and password command, and the command can be saved as a .bat file to run automatically when it is powered on. 3. When encountering problems, check whether the network is consistent, whether the sharing permissions are open, whether the firewall is blocked, whether "Network Discovery" and "File and Printer Sharing" are enabled. You can also try to enter the \target IP manually access the shared content in the "Run" window before mapping. Just pay attention to the details,

The duration of the airdrop dividend is uncertain, but the LayerZero, StarkNet and ZK ecosystems still have long-term value. 1. LayerZero achieves cross-chain interoperability through lightweight protocols; 2. StarkNet provides efficient and low-cost Ethereum L2 expansion solutions based on ZK-STARKs technology; 3. ZK ecosystem (such as zkSync, Scroll, etc.) expands the application of zero-knowledge proof in scaling and privacy protection; 4. Participation methods include the use of bridging tools, interactive DApps, participating test networks, pledged assets, etc., aiming to experience the next generation of blockchain infrastructure in advance and strive for potential airdrop opportunities.

To retrieve Bitcoins purchased years ago, you must first determine its storage location and retrieve the access key. The specific steps are as follows: 1. Recall and check the exchange accounts you may have used, such as Binance, Ouyi, Huobi, Gate.io, Coinbase, Kraken, etc., and try to log in or retrieve your password through email; 2. If Bitcoin has been withdrawn to your personal wallet, you must find the mnemonic, private key or wallet file. This information may exist in physical backup, electronic device or password manager; 3. After finding the key information, use the mainstream wallet app to select the "Recover Wallet" function and accurately enter the mnemonic or private key to synchronize the assets; Important tips: Do not disclose mnemonic or private keys to ensure the safe operation environment, and patiently and systematically check all

There are three ways to clean temporary files in Windows system. First, use the disk cleaning tool to open the system disk properties. Click Disk Cleanup to check the temporary files and delete them. Secondly, manually delete the content of the Temp folder. Press Win R to enter %temp% and enter and select all. Finally, you can run del/f/q%temp%* or cleanmgr/dC through the command prompt: for batch cleaning.