windows

Restore Windows following a driver error or failed update

A brief guide to help you resuscitate your PC in case you are no longer able to start after malicious driver updates.  NOTE:  This guide also applies in the event of an error due to driver installation that is not compatible with your system.  Blue error screen: CRITICAL_SERVICE_FAILED.    If you are in the condition of not being able to […]

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How the Windows password works and why when we type a wrong one it takes more time to login

It may have happened that you entered the wrong password on Windows (XP/7/8/10…) and noticed that the computer took longer to retry the input field.  Many will have wondered why when you enter the correct password the PC recognizes it immediately, while it remains in a sort of semi-stall otherwise.   Some may have thought that

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Slow PC? How to check on tasks that clog system interrupt and DPC requests

If we happen to see the PC is running slowly and, by opening Task Manager, we can see that the system interrupt consumes a lot of CPU, how can we determine which driver to remove?  What it is:  In fact, the interrupt is an asynchronous request that executes a hardware component following its synchronous (execution) event.  In case of an interrupt,

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How to verify the security of certificates installed in Windows

Sigcheck is a useful tool provided free of charge by Microsoft to check your computer for harmful digital certificates.  You can download it from the Ms-TechNet website.   You can download it from the site, click on  How to use and once you have downloaded the tool and extracted the .zip, open a prompt window on the folder (by pressing the SHIFT key

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