How to Create and Manage LVM (Logical Volume Management) in Linux
LVMinLinuxallowsflexiblestoragemanagementbyabstractingphysicaldisksintologicalvolumes.2.ThecorecomponentsarePhysicalVolumes(PVs),VolumeGroups(VGs),andLogicalVolumes(LVs),formingalayeredstructure.3.TosetupLVM,firstinitializedisksasPVsusingpvcreate,the
Jul 25, 2025 am 02:08 AM
How to disable Windows Defender?
1. Disabling WindowsDefender may be required when using third-party antivirus software or avoiding conflicts, but it will increase the risk of system exposure. 2. Professional version users can completely shut down through Group Policy: run gpedit.msc, enter the corresponding path, and enable the "Close Microsoft Defender Antivirus" option. 3. The Home Edition can be added to the DisableAntiSpyware value of 1 through the Registry Editor to prevent it from running. 4. Temporary pause can turn off real-time protection through the virus protection option in the settings. 5. It is recommended to keep it on in case of non-replacement antivirus software to ensure safety.
Jul 25, 2025 am 02:03 AM
How to enable dark mode in Windows 10
PressWindowskey I,gotoPersonalization>Colors,andsetChooseyourcolortoDarktoenabledarkmodefortheWindowsinterfaceincludingStart,taskbar,andActionCenter.2.InthesameColorssettings,setChooseyourdefaultappmodetoDarktoapplydarkmodetobuilt-inMicrosoftapps.
Jul 25, 2025 am 01:57 AM
Optimizing a PostgreSQL Database on a Linux Server
TunekeyPostgreSQLsettingslikeshared_buffers(25%ofRAM),effective_cache_size(50–75%ofRAM),work_mem(startat16MB),maintenance_work_mem(e.g.,1GB),wal_buffers(16MB),max_wal_size(2GB),checkpoint_completion_target(0.9),andrandom_page_cost(1.1forSSDs),thenrel
Jul 25, 2025 am 01:56 AM
How to disable startup sound on Windows?
To turn off the Windows startup sound, the easiest way is to modify the system sound scheme: open the control panel, enter the "Sound" setting, set the "Sound Scheme" to "Silent" or manually clear the sound of the "Start Windows" item and save it. Advanced users can enable the "Switch Windows boot sound" option in User Configuration" through the Group Policy Editor (gpedit.msc). In addition, the startup sound can be replaced with a mute .wav file to ensure long-term effectiveness. It is recommended to try the first method first, which is simple to operate and works for most Windows versions.
Jul 25, 2025 am 01:53 AM
How to fix '0x800701e3' disk error?
When encountering the "0x800701e3" error, you should first check the disk connection and hardware status to ensure that the cable connection is normal and that the hard disk is free of bad channels or physical damage; secondly, update or reinstall the disk drive, update or uninstall the "disk drive" and "IDEATA/ATAPI controller" related drivers through the Device Manager; then modify the disk policy of the external device and try to switch to "Quick Delete" mode; finally check the integrity of the system file and run the sfc/scannow and DISM commands to repair the system files. If the above method is invalid, it may be a hardware failure. It is recommended to replace the equipment and test it or send it to repair.
Jul 25, 2025 am 01:51 AM
Troubleshooting Windows 11 virtual desktop issues
Virtual desktop problems can be solved by checking Explorer, updating drivers, closing high-load programs, adjusting animation settings, avoiding misoperation and ensuring software compatibility. First, restart the "Windows Explorer" process and update the graphics card driver; second, close applications that occupy high resources and avoid running full-screen games or video editing software; then disable unnecessary animation effects; then check whether the wrong operation causes the window to move and use the key combination to adjust it back; finally confirm whether the software is compatible or contact the developer to handle it.
Jul 25, 2025 am 01:47 AM
How to check battery health on Windows laptop?
You can check the health status of Windows laptop batteries through the system's own method. 1. Use the command prompt to generate a battery report, enter powercfg/batteryreport, and open the generated HTML file to view the designed capacity, full capacity and cycle times; 2. Quickly view the power and estimated battery life through the task manager, press Ctrl Shift Esc to enter the "Performance" tab, and click "Battery"; 3. Optional third-party tools such as BatteryInfoView or HWMonitor to obtain detailed data such as voltage and temperature, but you need to pay attention to permissions and installation risks. In addition, if the battery life is poor but the battery loss is not high, it is recommended to check the background
Jul 25, 2025 am 01:39 AM
Diagnosing 'No internet, secured' error on Windows
When Windows displays "No Internet, connected", the first thing to do is to determine whether the problem is local or extensive: 1. Check whether other devices cannot be connected to the network. If they are also unable to connect to the network, it may be a router or ISP failure. You can check the ISP status page to confirm; 2. Restart the router and modem, unplug the power and wait for 30 seconds, then plug in the modem first, then connect the router and wait for several minutes; 3. Run the built-in network troubleshooting tool of Windows to automatically detect the problem; 4. Forgot the current Wi-Fi network and reconnect it to refresh the configuration; 5. Update or reinstall the network driver, clear the DNS cache, and reset the TCP/IP protocol; 6. Check whether the router settings prevent the device from being connected to the network. Following this step usually solves the problem
Jul 25, 2025 am 01:39 AM
Troubleshooting Windows 11 installation from USB
Common reasons and solutions for Windows 11 failing to boot from USB drive are as follows: 1. BIOS setting problem, enter BIOS to adjust the startup sequence and place the USB drive in front of the hard drive, turn off FastBoot; 2. U disk format is wrong, use MediaCreationTool or Rufus to correctly create a GPT/MBR format boot disk, and select FAT32 or NTFS file system; 3. SecureBoot restriction, enter BIOS to turn off SecureBoot or turn on CSM compatibility mode; 4. Hardware compatibility issues, try to replace the USB interface to USB2.0, replace the USB drive or update the motherboard BIOS. When encountering problems, check the connection between BIOS settings and hardware to avoid blindly redoing U.
Jul 25, 2025 am 01:39 AM
How to split screen on Windows 11
UseSnapLayoutsbyhoveringoverthemaximizebuttonorpressingWin Z,thenselectalayoutandchooseappstofilleachpane.2.Dragawindowtotheleftorrightedgetosnapittohalfthescreen,ortoacornerforaquarterlayout,thenselectasecondapp.3.UseWin arrowkeystosnapwindowsleft,r
Jul 25, 2025 am 01:35 AM
How to add or remove user accounts on Windows
To add, delete, or modify a Windows account, you can operate in "Settings → Account". When adding an account, select "Add Account" and enter your email address or create a local account; when deleting an account, select "Delete" and decide whether to retain the files; when modifying the account type, select "Change Account Type" to adjust permissions. Different versions operate consistently, but the network is restricted from creating a local account on the home version.
Jul 25, 2025 am 01:30 AM
The Evolution of Package Management in Linux
Linuxpackagemanagementevolvedfrommanualcompilationtoautomated,universalsystems:1)Earlytarballsrequiredmanual./configure,make,makeinstallwithnodependencytracking.2)First-genRPMandDEBpackagesstandardizedinstallationbutlackedautomaticdependencyresolutio
Jul 25, 2025 am 01:24 AM
Managing Secrets Securely on a Linux Server with Vault
InstallVaultbydownloadingandmovingthebinaryto/usr/local/bin,thenverifywithvault--version.2.CreateaconfigurationfilewithafilebackendandTCPlisteneron127.0.0.1:8200withTLSdisabledfortesting.3.InitializeVaultusingvaultoperatorinit,securelystoretheunsealk
Jul 25, 2025 am 01:21 AM
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