We write to let you know that a March 2021 Windows update is creating problems on your computer when printing a document.
When printing, the computer freezes with an error and restarts.
We have personally experienced the problem on Kyocera printers.
Other sites report the problem with Richo, Olivetti, Zebra printers.
In general, these are all printers that use the win32kfull.sys file
You simply need to uninstall the KB5000802 update
On March 15th Microsoft released an update that fixes the problem: KB5001567
On your Windows computer, Apache does not start. Go to the event viewer and find the event with error:
AH00072: make_sock: could not bind to address [::]: 80
The problem is that an application is using the same port 80 as your site on Apache. How to find out what this application is?
Open the command prompt (cmd). Type
You see all open ports on your computer used by applications. Find the line that (in this case) is about port 80. The PID column shows the number of the program that is using your port.
Open task manager, in the tab “Details” through the PID column you will find the program that is using your port.
You have 2 possibilities: either stop the program or, if you need the program, change the port used by this program, if possible, or the one used by Apache.
If the program you found through the PID is System, it means that Windows itself is blocking the door. Open the services and you need to stop the “World Wide Web Publishing Service” service. You will also have to set the start in manual, if instead it were in Automatic, because otherwise the next day the problem would reoccur.
Compiler Error CS1617
Invalid option ‘option’ for /langversion. Use ‘/langversion:?’ to list supported values.
Invalid option ‘6’ for /langversion; must be ISO-1, ISO-2, 3, 4, 5 or Default
Right click on your project and select “Properties” from menu.
Select Build menu and, in the bottom, click on button “Advanced”.
In the next form you don’t have any voice for the field “Language Version”
If the startup of your hp server crashes with this message
Power and Thermal Calibration in Progress…
Disconnect all USB cables (no keyboard and mouse) and turn on the server again.