Month: November 2020

What are symbolic links between folders and how to use them to increase space on your OS HDD

When we install a large program on Windows, links are created in the registry that help keep track of the real location of the executable files.  For this reason, if we move a program to a secondary partition, it will stop working (the links will stop running).    How do you ensure the continuity of …

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How to calculate hash MD5-SHA1-SHA-256-CRC32 in Windows Linux Mac and online

What they are  Hash are used in computer science to map a string (a sequence of bits) of arbitrary length into a string of predefined length.  It is a sort of ‘signature’ of an electronic document. For each string you can calculate a hash, so each different string will have different hashes.  However, calculating the …

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Restore the credentials management panel on Windows 10 or fix the continuous Onedrive password request

If you have found an error when opening the ‘Credentials Management’ tool in Windows 8/8.1/10, you will know that without some reset it is impossible to even read the saved passwords.  This error can also affect other applications in the system, such as OneDrive or mail administrators (obviously in addition to Browsers, who use the encrypted archive of this tool to store …

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RAR5 vs RAR4 vs 7ZIP – A quick comparison

Better. zip .7z or .rar?  Often we don’t even pay attention to it, but when we click on a ‘zipper’ file, we are using sophisticated compression algorithms that over the years keep getting better and better.   There are many algorithms and therefore compression formats:  Zipper, Rar, GZip, BZip2, 7z, Tar, Tar.gz …   Among the most popular on Windows we have: 7z, Zip and Rar.  The first and the second one …

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Solar activity in real time with SOHO (NASA ESA NOAA)

SOHO – Solar and Heliospheric Observatory EIT 304 EIT 195 EIT 171 EIT 284 LASCO C2 LASCO C3 H-Alpha H-Alpha Contrasted Nobeyama 17 GHz Magnetogram 525.02nm (Fe I) Solar X-rays Geomagnetic Field   X-Ray flux Electron flux Proton flux Magnetometer Satellite Environment   SOLAR WIND Total Electron Content (TEC) Latest 48h of photon data Solar …

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