How to find the largest files and directories on a system?
To quickly find the most space-consuming files and directories in the system, it can be achieved through command line and graphical tools. 1. Use the find command to find large files, such as: find/path/to/search-typef-size 1G; 2. Use the du command to analyze directory occupancy, such as: du-h/path/to/check|sort-hr|head-n20; 3. Linux users can use DiskUsageAnalyzer (baobab) for graphical analysis; 4. macOS users can use OmniDiskSweeper or DaisyDisk; 5. Windows users can use "Storage" settings or third-party tools
Jul 09, 2025 am 01:43 AM
How to upgrade from Windows 10 to Windows 11 for free
Eligible genuine Windows 10 users can upgrade to Windows 11 for free. 1. First, use the "PCHealthCheck" tool to check whether the device meets the hardware requirements, including Intel processors above the 8th generation, 4GB memory, 64GB space, TPM2.0, DirectX12 graphics card and 720p resolution monitor; 2. If the test is passed, you can download and install it through "Windows Update", but please note that Microsoft pushes it in batches; 3. You can also manually download the ISO image and create a USB disk installation media to complete the upgrade while retaining the files; the license will be automatically activated after the upgrade. If the old device is not supported, it cannot be upgraded, and it can be fallback to Windows within 10 days after the upgrade.
Jul 09, 2025 am 01:39 AM
How to remove the Chat (Microsoft Teams) icon from the Windows 11 taskbar?
To close the Chat (Microsoft Teams) icon in the Windows 11 taskbar, 1. You can directly close it through the taskbar settings: right-click the blank space in the taskbar, enter the "Taskbar Project", and close the "Chat" option; 2. If it cannot be turned off, you can modify the TaskbarMn value to 0 through the Registry Editor and restart the Explorer; 3. Use the Group Policy Editor (Pro version only) to disable the relevant policy items. Ordinary users recommend giving priority to the first method, which is simple to operate without additional permissions or risks.
Jul 09, 2025 am 01:36 AM
How to fix pending restart for updates in Windows?
When encountering the problem of Windows update stuck in the "restart required" state, you can try the following methods to solve it: First, check whether the three services of Windows Update, BackgroundIntelligentTransferService (BITS) and CryptographicServices are running normally. The startup type should be "automatic". If it is not running, you can start manually or execute the command reset through the command prompt; second, clean up the update cache in the C:\Windows\SoftwareDistribution folder; then check whether there is any third-party software interfering with the update process. It is recommended to temporarily close the relevant software test problem to be alleviated; finally enter
Jul 09, 2025 am 01:34 AM
This Is the Thing I Envy Most About Windows
It's the longevity of these applications, even more so than the sheer quantity released, that I most admire about Windows. You can attempt to run a PC game you purchased in the 90s, and there’s a real chance it could still function.This might seem tr
Jul 09, 2025 am 01:33 AM
How to enable Ultimate Performance mode in Windows 10?
The UltimatePerformance mode for Windows 10 is enabled via the command line and is only available for high-performance devices. 1. First, run powercfg-l through the administrator command prompt to confirm whether the mode already exists; 2. If not, you can use the powercfg-duplicatescheme command to manually add it; 3. After adding, switch to this mode through the power option or command; 4. Pay attention to high power consumption, high heat generation and noise issues when using it. It is recommended to use it only when extreme performance is required.
Jul 09, 2025 am 01:33 AM
What is GRUB (Grand Unified Bootloader)?
GRUB is a multi-system boot management tool that is used to load and select the operating system kernel when booting. It works in three stages: Stage1 loads the boot sector code, Stage2 loads the complete program and configuration files, and finally loads the kernel into memory and hands over control. Common features include support for multi-system selection, multiple file systems, command line boot, and configuration customization. Common problems such as missing boot menu or GRUB command line appears after deleting Linux, which can be solved by repairing boot or modifying the configuration. Daily maintenance is recommended to run update-grub or grub-mkconfig after update and reserve the /boot partition for improved stability.
Jul 09, 2025 am 01:29 AM
5 Open-Source Alternatives to Adobe Acrobat for Editing Your PDFs
Part of the LibreOffice suite, which serves as a reliable alternative to Microsoft Office, Draw is technically not a PDF editor. It is primarily a vector graphics editor. However, it offers several functionalities that enable manipulation of PDF file
Jul 09, 2025 am 01:28 AM
What is the purpose of the /etc/hosts file?
The /etc/hosts file is used to map hostnames to IP addresses as a local manual substitution or supplement to DNS. It is checked first when the system connects to the hostname and can be used for local development, website blocking, and DNS change testing. 1. It achieves local control over domain name resolution by taking priority over DNS in the system search order; 2. Typical uses include pointing localhost to 127.0.0.1 or pointing custom domain names to local IP; 3. Common application scenarios include local development and testing, blocking specific websites and rehearsing DNS changes; 4. Editing requires administrator permissions, and format specifications should be followed to avoid errors.
Jul 09, 2025 am 01:27 AM
How to allow a program through Windows Firewall if it's being blocked?
If the program cannot work properly due to being blocked by the Windows firewall, it can be solved by adding allowed exceptions. 1. First confirm whether the program has been blocked, check whether there is a network access error message or check the list of allowed applications in the Windows Security Center. 2. Enter the firewall settings through the Control Panel or Windows Security App and select "Allow apps to pass through the firewall". 3. If the program is not in the list, click "Change settings" and select "Allow other applications", browse and add the program's .exe file, and check the "Dedicated" and "Public" network types at the same time. 4. If the problem still exists, you may need to check whether the correct executable file is selected, whether there are multiple program versions, or whether third-party security software interferes with the rules. Pro
Jul 09, 2025 am 01:26 AM
What is the difference between blue-green deployment and canary release?
Blue-greendeploymentandcanaryreleasearetwostrategiestoreduceriskduringsoftwareupdates.Blue-greendeploymentusestwoidenticalenvironments,switchingtrafficfromtheold(blue)tothenew(green)oncevalidated,ensuringzerodowntimeandeasyrollbackbutrequiringmoreres
Jul 09, 2025 am 01:20 AM
How to fix 'File History doesn't recognize this drive' in Windows?
Theerror"FileHistorydoesn'trecognizethisdrive"inWindowstypicallyindicatesthatFileHistorycannotusetheselecteddriveforbackupsduetoissuessuchasincorrectformatting,leftoverdatafrompreviousbackups,orpermissionproblems.
Jul 09, 2025 am 01:11 AM
How to enable Clipboard History in Windows 11?
To enable the clipboard history function of Windows 11, first press Win I to open "Settings", then click "System" and select "Clipboard", and then turn on the "Clipboard History" switch. This function can save up to 100 copies of content, only supports text and simple formats, and does not support pictures. After opening, you can use Win V shortcut keys to quickly paste entries, which are suitable for multi-task operation scenarios such as writing reports, programming and debugging. Clipboard history is only available locally by default, and cross-device synchronization needs to be achieved with the help of Office suite or third-party tools.
Jul 09, 2025 am 12:56 AM
What is the Prometheus Query Language (PromQL)?
PromQL is a language used in Prometheus to query time series data. Its core lies in filtering, aggregating and transforming data through indicator names and tags. 1. It supports directly entering the indicator name to view the relevant time series; 2. Use tag filtering such as {job="node-exporter"} to narrow the range; 3. Provide functions such as rate() to handle incremental counters; 4. Distinguish between real-time vectors (such as up) and range vectors (such as rate() required); 5. Can be used to calculate request rate, error rate and aggregate data across instances, such as avg() by (instance). Mastering PromQL helps build monitoring dashboards and set alert rules.
Jul 09, 2025 am 12:54 AM
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