Articles by Philip Celasco

Chmod 777 gives the owner, group and every other user read, write and execute rights. Learn how to use it, why it is risky, and the safer modes to pick instead.

Enable Copilot in Excel on Windows or Mac with the Enable Copilot checkbox, check your Microsoft 365 license, open the Copilot button and fix it when it is missing.

Print envelopes in Word from the Mailings tab: type the address, pick the envelope size, load it as shown and print. Mac, mail merge and fixes included.

Windows Remote Assistance FAQs: how to enable msra.exe, send an invitation, offer help as an admin, open firewall ports, and when Quick Assist is the better choice.

Garmin HRM-Pro Plus vs. HRM 600 vs. HRM 200 compared: prices, battery, running dynamics, swim support, watch-free recording and which chest strap to buy.

Error 502 means a gateway or proxy got an invalid reply from the server behind it. The nine common causes, visitor fixes, and how site owners diagnose a 502.

5G is the fifth generation of cellular technology. Learn how it works, low, mid and high band spectrum, 5G vs 4G LTE, home internet costs and fixes for slow 5G.

Fix “running scripts is disabled on this system” in PowerShell on Windows 10: set RemoteSigned for your user, unblock one script, and avoid Unrestricted or Bypass.

Enable the new Software Center in SCCM ConfigMgr from Client Settings > Computer Agent, pilot it on one collection, verify it, and fix missing apps and tabs.

AVG Secure Browser is a free browser from AVG with ad and tracker blocking, Web Shield and Hack Check. See its privacy tools, safety, devices and what PRO adds.

Manually update Microsoft Defender Antivirus on Windows 11 and 10 with Check for updates, Update-MpSignature, MpCmdRun or the offline package, then verify it.

Apple iPhone XS Max specs: 6.5-inch OLED, A12 Bionic, dual 12MP cameras, IP68, eSIM, and iOS 18 as its last version, plus checks before buying one used.