What are possible causes of keyboard lag on my desktop machine?

I am running Windows 7 and began experiencing keyboard lag in most applications, and it seems to be getting worse. Certain websites are the worst – on some, I can type a sentence, take my hands off the keyboard, and watch the characters continue to appear on the screen for several seconds. Others are not … Read more

Is there a difference between a command line flag and a command line option?

I am hearing these two terms interchangeably and I am wondering if there is any difference between them, like flags are for one letter options or flags are after a single dash. Answer You’ll probably find “arguments”, “options”, and “switches” are also often used interchangeably in this context as well. “Flags” specifically, are Boolean arguments, … Read more

How to set a flag as default on an *.EXE file?

When I open Sumatra I need inverted colors by default. But even though I changed the shortcuts to: “/sumatraPDF.exe” -invert-colors the program runs without the flag when I double click a PDF file at a time where the program is closed. How do I make sure the flag is used when double clicking PDF files? … Read more

Why is my computer really slow despite having a considerable amount of free memory?

I have a Lenovo g560 3-4 years old, Intel i5, with 2GB ram and with a Geforce 310M. It always had some issues during startup or when starting a new program, but recently it just went crazy. From the 2GB I always have 300-800 Mbs free, and the cached memory rarely goes above 300 (from … Read more