Explore core pc components—the cpu, motherboard, hard drives, ram, psu, gpu, and heat sink—and how they store, process, and power data, plus basic motherboard identification for the a+ exams.

Explore motherboard anatomy, from form factors and firmware basics to BIOS, UEFI, POST, secure boot, TPM, and expansion slots, with practical exam tips.

Learn the essential cpu basics for the A plus exam, covering AMD and Intel processors, PGA and LGA sockets, x86 and x64 instruction sets, and multi-core with hyper-threading.

Learn to install a processor into a motherboard, using an Intel i7 as example; align the processor with the socket, keep it still, close the latch, and secure the bars.

Explore the power supply unit, its role in powering every pc component, and essential safety notes on 115v and 220v, voltage switching, and not repairing psus for the a+ exam.

Install a modular power supply unit in a PC and plug in keyed cables. Secure the unit with screws and align it flush with the back panel.

Understand RAM basics: volatile memory, how data moves between RAM and the hard drive with a swap file, form factors such as SIM, DIMM, SO-DIMM, and multi-channel memory.

Learn how to install ram into a motherboard, load four sticks into eight slots, ensure proper orientation, and consult the manufacturer manual to optimize ram placement.

Explore hard drive form factors (3.5in, 2.5in, m2) and cable types, compare hdd, ssd, and nvme ssd performance, and contrast mbr vs gpt partition schemes.

Install hard drives—HDD, SSD, and M2—using SATA data and power cables or direct motherboard slots, while powering off for safe installation.

Explain what a graphics processing unit is and the difference between integrated and dedicated GPUs. Show how to install a gpu in a pc using a PCIe x16 slot.

Update motherboard firmware on a business pc with Dell SupportAssist. Scan hardware, download updates from Dell cloud, install firmware, and reboot to finalize.

Explore mobile devices, their similarities to desktops, and how mobile OSs like iOS and Android differ from Windows/macOS/Linux; learn upgradable components, replaceable parts, and common mobile features.

Install an expansion card in your pc to restore or expand functionality, such as a nic for ethernet, and install its driver in the operating system.

Learn how to install a SODIMM into a laptop by releasing the pins, removing the shielded module, and sliding it into place until the pins click.

Learn to configure Windows virtual memory by adjusting page file settings. Locate the page file on the C drive, reveal hidden system files, and understand reboot needs and RAM sizing.

Learn to clean thermal paste from a cpu using isopropyl alcohol and a paper towel, wiping until the cpu is completely clean.

Learn how to change the boot order to prioritize the USB drive over the M2 drive with Ubuntu, boot Windows PE, and revert the change.

Set a BIOS or UEFI password on a Dell using the security tab to configure a system password and save changes, then reboot to require the password.

Configure secure boot in the BIOS/UEFI to block unsigned operating systems, boot a Ubuntu USB by disabling secure boot, and re-enable it with a BIOS password.

Learn to remove and install a cmos battery (cr2032) on a motherboard to preserve the real-time clock and bios/uefi configuration when the system is powered off.

Learn how to connect front panel headers on a PC, including USB and fan headers, and how to identify power pin layouts using documentation when preinstall blocks aren't available.

Learn how to install a heat sink in a PC, mount it on the CPU, connect fans and SATA for CPU temperature monitoring, and apply thermal paste before securing it.

Discover PCIe up-plugging, where a card fits any PCIe slot length, and remember to install drivers in the operating system for the hardware to work.

Explore common video cables, including VGA (analog), DVI (analog and digital), DisplayPort (high-speed and daisy-chaining), mini DisplayPort, and HDMI (digital with video and audio) for exam-ready distinctions.

Explore the evolution of hard drive cables, from pata and molex to scuzzy and sata, including esata and sas, with notes on hot-plug capability and typical usage.

Identify common usb cables and connectors, usb a, b, c, mini, micro, and usb 3.0 variants, and recall their speeds and adapter uses for ethernet, wifi, and displays.

Explore miscellaneous cables for the CompTIA A+ exam, including lightning and thunderbolt, serial (RS-232/Db9), and rollover cables used for network device administration and configuring routers and switches.

Explore monitor screen types, including LCD variants and OLED blackness, compare monitors with projectors, review cables and display settings, and cover core troubleshooting steps for both devices.

Learn to set up a docking station (port replicator) with USB, HDMI, displayport, RJ-45, and audio connections for a Lenovo ThinkPad, including multi-monitor display configuration.

Demonstrates using a rollover cable to connect a Ubiquiti edge router to a PC for initial out-of-the-box setup, including a USB-to-serial adapter, com port, baud rate, and PuTTY.

Explore networking hardware fundamentals, from nic and mac addresses to patch panels, hubs, switches, routers, modems, wireless access points, poe devices, power injectors, 66 blocks, and basic firewall concepts.

Explore networking tools, including crimpers for RJ-45 and RJ-11 cables, cable strippers, wi-fi analyzers, toner and probe, punch down tools with keystone jacks, cable testers, loopback plugs, and network taps.

Explore common network types and topologies, including lan, wan, pan, man, can, san, and wireless variants, plus peer-to-peer, client-server, bus, ring, mesh, and star/hub-and-spoke designs.

Explore the OSI and DoD networking models, covering the seven layers from physical to application and the data flow with frames and packets for A+ and Network+ exams.

Explore coax and fiber cabling, including RG-8/58/59/6, MMF/SMF, and fiber connectors (SC/ST/LC); review Ethernet, UTP/STP, RJ-45, crimp, and plenum cables.

Understand tcp/ip as the internet's core protocol, with ip guiding traffic like street signs and tcp ensuring delivery. Explore ports and https 443, obfuscation by changes, and ip:port sockets.

Explore layer two networking by examining NICs, switches, and access points, and review MAC addresses and port mirroring. Compare CSMA/CD and CSMA/CA, and cover duplex, VLAN, QoS, and PoE basics.

Learn layer three networking concepts for the CompTIA A+ exam, including IP addresses (IPv4/IPv6), subnet masks, classful and classless networking, NAT, DHCP, DNS records, and VPN basics.

Compare TCP and UDP at layer four, contrast connection oriented and connectionless, and explain ports and default mappings like port 443 maps to https for real-time or reliable transfers.

Explore Wi-Fi fundamentals, 802.11 standards, CSMA/CA, 2.4 vs 5 GHz bands, site surveys, MIMO and MU-MIMO, beamforming, and basic Wi-Fi security practices including SSID and default credentials.

Discover how firewalls block ports and websites, with host-based, network-based, and embedded examples, and cover port forwarding, UPnP risks, UTMs, proxy servers, load balancers, legacy systems, IoT, and SCADA networks.

Explore how an unmanaged switch lets multiple devices talk to each other by connecting a computer, a test machine, and a printer, as a cheap network expansion.

Install a fiber or Ethernet NIC by inserting a PCIe card into the motherboard, secure it with a screw, and install the driver if the OS doesn’t auto-detect it.

Install a wifi PCIe card in your PC by inserting it into the motherboard's PCI slot, attaching antennas, and installing Windows drivers to connect to wifi.

Learn how USB network adapters fix a broken Ethernet port by converting USB to Ethernet, exploring plug-and-play vs manual driver installation, and enabling the operating system to communicate with devices.

Demonstrates how network address translation translates private IPs to public IPs on a TP-Link router, and shows that turning NAT off breaks internet connectivity and reduces protection.

Configure a static IPv4 address in Windows by using the adapter properties, setting the IP, subnet, default gateway, and DNS 8.8.8.8, then verify with ipconfig.

Learn how to configure a DHCP server on a Soho router by adjusting the IP address pool, saving changes, and renewing client IPs to obtain a new address.

Learn how to change wifi encryption on a TP-Link AX 1800 router by accessing wireless security, selecting a new encryption (WPA, WPA2, WPA3), and saving to strengthen network protection.

Hide the SSID to reduce visibility and learn how to connect to a hidden network by manually entering the SSID and password on Windows.

Learn how to purchase a domain name from a registrar like GoDaddy, check availability, consider broker fees, and own a domain for the term you choose.

Assemble a small business network by installing a router, switch, fiber links, and PoE devices, then configure it with a controller to enable SDN-enabled connectivity for access points and cameras.

Learn to use a wi-fi analyzer to view nearby networks, compare 2.4 ghz and 5 ghz channels, and identify channel overlap for better wifi speeds.

Learn ethernet over power with TP-Link adapters to extend internet via electrical circuit; connect router to one adapter, plug into the wall, then connect the device to the second adapter.

Learn how to use a crimper to terminate an Ethernet cable, including clipping, stripping the jacket, untwisting eight wires into four pairs, and crimping in the RJ-45 slot.

Use a toner and probe to identify wall plate cables. Turn on the toner, scan with the probe, and listen for signal to locate the correct cable on patch panel.

Learn to install a wall cable with keystone jacks using a punchdown tool, including stripping, arranging eight wires, punching them in, and securing the faceplate.

Learn to use a cable tester to verify cable integrity, identifying skipped wires or incorrect wire order, and test from wall plate through patch panels to the telco room.

Test a port with a loopback plug by installing an SFP module, plugging in, removing caps, and confirming the light indicates the port is good. RJ-45 loopbacks use same method.

Insert the SFP module into a router, switch, NIC, or server, remove the dust cover, expose the fiber connectors, and connect the fiber.

Explain how ports at layer four and protocols at layer seven relate, using 443 for https as a default mapping, and note IANA and the potential for changes.

Demonstrate how ftp uses ports 20 and 21 to transfer files and why it is insecure. Set up kali linux ftp server with vsftpd; capture unencrypted traffic to show risks.

Learn to securely connect to a remote Ubuntu machine using SSH with PuTTY, install the OpenSSH server, establish an encrypted tunnel, and verify encrypted SSH traffic with Wireshark.

Demonstrate how to use Telnet to connect between machines and capture the unencrypted traffic with Wireshark, highlighting the security risks of port 23.

Explore how the domain name system translates domain names to IP addresses and handles DNS queries. See how DNS servers resolve comptia.org and how browsers fetch pages.

Learn how DHCP operates with ports 67 and 68, using Wireshark to observe the discover, offer, request, ack exchange, showing client port 68 and server port 67 during renewal.

Examine why http over port 80 is insecure and why https should be used, through a hands-on Ubuntu VM demo of a simple http site, firewalls, and Wireshark traffic capture.

Explore net bias and ports 137, 138, and 139, focusing on port 137 as a naming service demo while noting NetBIOS over TCP/IP is old and insecure.

Explore how HTTPS uses TLS to encrypt web traffic and protect login credentials. The lecture demonstrates TLS traffic in Wireshark, including client hello and encrypted application data.

Explore how port 445 powers smb and enables an administrative share on Windows 10 by enabling the registry setting local account token filter policy.

Enable remote desktop on a Windows machine and connect from a host. Remote desktop protocol uses port 3389 and enables a 1-to-1 session, unlike screen sharing tools.

Cover SNMP ports 161 and 162, agent and MIB roles, and controller–router communications; LDAP 389 and the move to Azure Active Directory; SMTP 25, POP3 110, IMAP 143.

Demonstrate changing the http port from 80 to 3000 and accessing a site via a socket using an ip:port address, with ufw firewall adjustments.

Define the cloud as someone else's computer and outline CSPs like AWS, Azure, and GCP, plus shared resources, metered usage, rapid elasticity, high availability, and file synchronization.

Understand virtualization by creating multiple logical PCs on one physical machine with type 1 and type 2 hypervisors, and learn cost savings, snapshots, and testing benefits.

Enable the SVM mode in bios/uefi on an Asus motherboard to turn on the type 2 hypervisor, then save changes and restart to run Kali Linux in VirtualBox.

Explore printers in depth, including impact, inkjet, thermal, laser, and MFDs, plus interfaces, duplexing, maintenance, and common troubleshooting for the CompTIA A+ core one and core two exams.

Learn how to replace an ink cartridge in an inkjet printer, check ink levels, remove the old cartridge, install the new one, and handle model differences.

Learn to perform printer sharing on Windows, including enabling sharing in printer properties, recognizing the host name, and adding a shared printer from a VM to the host.

Identify and fix stuck print jobs on Windows by stopping the print spooler, deleting queue files in the System32 spool directory, and restarting the spooler to refresh the queue.

Learn to print a test page directly from the printer panel, using the print reports option to test the network configuration, and troubleshoot issues like dark lines or paper residue.

Print a test page in Windows to diagnose printer or network issues, using the printers settings and the print test page option to localize problems.

Install paper properly by opening the top, loading into the bottom tray, securing with the tab for a snug fit, and running a test print.

Learn to use a printer's self-clean function to clean nozzles and improve print quality, with model-specific steps and guidance on when to seek a printer tech and may take time.

Master the CompTIA troubleshooting model by backing up first and following six steps: identify the problem, establish and test a theory, plan action, verify functionality, and document findings.

Master hardware troubleshooting by following safety rules, power off first, using manufacturer documentation for post beeps, and diagnosing issues from black screens to overheating.

Troubleshoot windows by rebooting, restarting services, and updating the OS and apps, while diagnosing bsod causes, slow performance, memory issues, and driver or malware indicators.

Apply OSI-based network troubleshooting from layer one to seven, using practical steps like check cables and Wi-Fi, validate IP settings with ipconfig, and ping, DHCP, and DNS checks.

Master printer troubleshooting for the CompTIA A+ exam by diagnosing paper jams, unplugging before service, and addressing network and printer hardware issues including laser, inkjet, and impact printers.

Learn to use the event viewer in Windows 10 and 11 to access Windows logs—setup, system, application, and security—and diagnose issues by checking event IDs.

Explore raid types such as raid zero, one, ten, and five, and learn how mirroring, striping, parity, and hot spares provide speed, redundancy, failover, and uptime.

A backup is a copy of a file. Full backups copy everything; incremental backups save changes since the last backup; differential backups save changes since the last full backup.

Demonstrates configuring a software raid on Windows using disk management to create a mirrored volume (raid 1) on two disks, highlighting reliability concerns and dynamic disks.

Explore direct attached storage raid configurations on a hardware box, including raid 0, 1, 5, and 10, drive requirements, and Windows file system setup for usable arrays.

Explores the Linux shell and its basic commands like mkdir, touch, ls, pwd, mv, cp, rm, and sudo to manage files, directories, and permissions.

Get an overview of macOS essentials, including Time Machine backups, Mission Control, Keychain, Spotlight, iCloud, gestures, Finder, Dock, Terminal, and Force Quit, with a note on exam relevance.

Master Windows fundamentals for the CompTIA A+ exam, including installation methods, editions, file systems, management tools, security features, and mobile device and application management.

Explore Windows commands part 1, from ipconfig and ping to nslookup and tracert. Learn file and directory basics, drive management, and essentials like gpedit, sfc, diskpart, ver, and shutdown.

Explore Windows GUI wizards in part two, such as gpedit.msc, disk management, services.msc, event viewer, and task scheduler, plus regedit and defrag.

Format a new hard drive on Windows 10 using disk management, creating a GPT partition and a new simple volume, and explain NTFS file system basics in a virtual machine.

Learn how to shrink and grow Windows hard drive partitions using disk management, including deleting partitions, extending a volume, and shrinking by a specific amount.

Demonstrate creating MBR partition scheme with three primary partitions and an extended logical partition, converting from GPT to MBR, and using partitions to limit space on the C drive.

Learn how to access WinRE from within Windows and from USB, CD, or BIOS, and explore repair options like startup repair, uninstall updates, system restore, and system image recovery.

Boot from the USB in the BIOS/UEFI, wipe and convert the target disk with DiskPart, install Windows 10 on the M2 drive, then complete the out-of-box experience and run updates.

Enable BitLocker on Windows to encrypt the entire hard drive by turning it on through start and manage BitLocker. TPM errors in a virtual machine don't change the basic steps.

BitLocker encrypts entire Windows drives, preventing access without the original system. The video shows turning BitLocker on and comparing encrypted versus unencrypted drives with an M2 USB adapter.

Learn how to use the encrypting file system (EFS) on Windows 10 and 11 to encrypt individual files, prevent access by other users, and follow a two-user lab demonstration.

Explore how the Windows registry, the OS backbone, stores every setting as registry values and maps changes like app capture enabled in game DVR, with careful direct edits.

Download wake on LAN from the Microsoft store, name the server and client, enter the client MAC address, enable wake on LAN in BIOS/UEFI, and test with the magic packet.

Enable compatibility mode to run legacy applications on modern Windows systems by selecting a supported Windows version, such as Windows Vista, in the program's properties.

Learn to manage windows services, focusing on the print spooler, to enable printing by starting or stopping the service and testing print output.

Master how the task manager shows processes, performance, startup items, app history, and services, and open it via control alt delete or the taskbar.

Explore how Windows user account control, a security feature, limits actions without confirmation, and how to adjust it with user account control settings, including never notify, to require administrator permission.

Create a new local user in Windows via local user manager, set a password, and ensure they are not an administrator. Sign in and test elevated access with administrator credentials.

Learn how group policy objects centralize Windows configuration, prevent user changes, and enforce firewall settings across multiple computers using gpedit.msc to prohibit access to the control panel.

Navigate to start, settings, system, power and sleep to access Windows power options. Adjust sleep timing, hybrid sleep, and lid actions using change plan settings and advanced power settings.

Learn how to perform folder redirection in Windows by moving a main library such as documents to a new location, applying changes, and restoring default paths.

Boot into safe mode via Windows recovery options to troubleshoot boot issues and undo recent changes. Safe mode loads basic drivers and lets you uninstall apps or roll back drivers.

Revert a driver by using the device manager's rollback driver option when a driver causes issues or system instability. If a driver history exists, select rollback driver, confirm, then reboot.

Open task manager, go to startup, and disable unnecessary startup items to save boot resources. Toggle off OneDrive and Windows security notifications to stop them from starting automatically on boot.

Enable biometric authentication on Windows 10 with Windows Hello—fingerprint, facial recognition, or a pin. Go to settings, accounts, and sign-in options to set it up, noting the VM limitations.

Learn to use the Windows task scheduler to create a basic one-time task, such as rebooting the system with the shutdown command, and manage scheduled tasks.

Configure the Windows user access control to protect your system, demonstrating how to run apps as administrator, adjust notify settings, and understand the prompt frequency slider.

Open the Windows run command by pressing Windows key + r to quickly launch programs, folders, documents, or websites, and compare it to the command prompt for quick one-liners.

Create a custom MMC with snap-ins for disk management, event viewer, and local computer policy, then save the console to the desktop to preserve it.

learn to repair the master boot record and boot sector in windows 10 using the recovery environment and bootrec, with a note on GPT relevance for the CompTIA A+ exam.

Disable autoplay in Windows 10 to prevent automatic execution from usb drives or cds, reducing security risk, and learn to turn it off in a Windows 10 vm via VirtualBox.

Disable USB ports through BIOS/UEFI using USB single port control, then boot and verify a plugged USB device cannot mount on server hardware.

Configure the Windows account lockout threshold using gpedit.msc in account policy settings. The demo sets five invalid attempts and tests a one-minute lockout, noting a 15-minute recommendation.

Demonstrates building a basic Active Directory on a Windows Server in AWS EC2, configuring a domain controller, and exploring Active Directory vs Azure Active Directory for helpdesk tasks.