(Answer requested by Kimberley Johnson) They sure can give different results, can’t they? But it’s not so much because the guts of the mikes are wildly different. Rather, it’s how they’re used. In a laptop, the microphones will pick up not only the intended sounds, but also vibrations from the hard drive and fan; plus…
Category: A reader asks…
“Can I erase all of my passwords from all the sites that require one?”
(Answer requested by Chris Blood-Smyth) You mean all at once, on the web? Nope. You can delete your local copies of passwords, if you’ve stored them on your system (e.g. you can uninstall or delete or zero out your password manager). But you cannot automatically delete your passwords from all the sites you’ve logged into….
“Does USB 3.2 Gen 1 support fast charging?”
(Answer requested by Rinki Singh) No. Normal USB 3.2 Gen 1 combined data/power sockets can deliver a maximum of 900mA at 5v, for 4.5w total. It’s not meant for use has a high-power charging port. (USB standards — Wikipedia) Separately, there are special-purpose USB PD (power-delivery) socket standards, and USB BC (battery-charging) socket standards; both…
“Can touching an LCD screen cause damage?”
(Answer requested by Ian Sandoval) Touching with what, and how hard? Even on screens that aren’t meant to be touched (e.g. not a touchscreen!) a simple tap or swipe with a fingertip, where the screen is not visibly deformed, won’t do any harm except maybe to leave behind a little skin oil. A harder touch…
“Can a virus disguise a 32-bit operating system for a 64-bit operating system?”
(Answer requested by Kacey Mae) Can it? I suppose. But it would be extremely difficult to pull off at all; and nearly impossible to pull off in a way that would fool anyone who was paying attention. The usual way to run a full 32-bit OS inside a full, operating 64-bit OS is to use…
“How do you detect if your computer has a boot sector virus?”
(Answer requested by Luis Fuentes) The most-certain way is to boot your PC with an external, self-contained (a.k.a. “portable”) anti-malware tool, such as one contained on a flash drive or DVD. (Examples.) These self-contained apps don’t rely on the installed operating system, and can instead examine your entire hard drive — including the boot sectors…
“What is the best way to store a 2000mAh cell phone battery for 1 to 2 years, charged or as it is packed?”
(Answer requested by Md-Abdur-Rahim) Store it the same way it probably arrived from the factory: with about a 30%-40% charge, which is the “sweet-spot” for long-term storage with minimal self-discharge for LI-ion batteries. Once charged to around 40%, carefully pack the battery in nonconductive material (e.g. a cardboard box), and then let it sit in…
When software just won’t let go
Talk about frustrating! AskWoody Plus subscriber Marvin Moss has an app he can launch only once! If he wants to run it a second time, he has to totally reboot his PC. His specific issue is with Firefox, but the same kind of problem can happen with any complex piece of software — and the solution likewise…
“Why is my laptop battery draining fast, like from 100% to 10%, just in 20 minutes?”
(Answer requested by A.R.Talha) The answer depends on how old the battery is. By human analogy, think of the 100% effort that a 20 year old footballer can give compared to the 100% effort of a nursing home resident. It’s a full 100% effort in both cases, but the latter is less overall than the…
“How do I transfer data from a dead hard drive to a new hard drive?”
(Answer requested by Mridul Mohta) It depends on what killed the drive: An electrical problem? A mechanical problem? Pick up the (unpowered/fully off) drive and gently shake it. Is there loose stuff inside the housing? If you hear pieces rattling around, you may have broken one or more of the disc platters (disc platters are…