Posts by Usman

There are several ways to open or run a file in Windows. You can double-click the file to open it or use the Run command box. You can also use command prompt to open the file. Sometimes it happens...

System files in Windows can not be modified or deleted directly. The user can't replace the system files without taking ownership of the files first. By default the ownership belongs to the System...

Java 7 Update 25 has been released by Oracle. This is a critical patch update which includes 40 new security fixes of which 37 can be remotely exploited without authentication. 42 vulnerabilities...

"Your PC needs to restart to finish installing updates. If you've already saved your work, you can restart now". How many of you have seen this warning when Windows 8 automatically downloads and then...

List of fixes and solutions you can apply to the computer where you are getting USB Device Not Recognized or Device has malfunctioned errors. USB ports and devices are used everywhere. There are...

Computer network communication works using software ports. Ports are application specific end points 65,535 ports of which 1024 are pre-defined also known as well-known ports. You can learn more...