Microsoft admits the problem, but also that it still has no solution. Only, in the meantime, the problem has turned out to be even more serious than expected. What problem are we talking about? Than that at printers, caused byWindows 10 latest security update.
To be precise the update is KB4557957, that is, the Patch Tuesday in June released to fix dozens of small and large bugs previously detected and reported to Microsoft by users. It has already been known for a few days that this update creates several problems for USB printers. Now it turns out that the problems are not limited to the physical printers connected to the computer, but also affect the virtual ones. That is printing in PDF format, used to create digital copies of documents and distribute them on the web or in the company. Microsoft, while admitting the problem, has not communicated when exactly it will proceed to solve it.
Why the printer doesn't work
After update KB4557957 installed some printers are no longer able to print. It's not a single model issue, because the bug has been reported on printers from different manufacturers and, in reality, it's all in the print spoiler and the fact that the USB port the peripheral is connected to becomes invisible to the spoiler itself. Apparently the main responsible for the error is the "Language Monitor" of the printer driver, that is the .Dll file that serves among other things to manage part of the communication between the device and the applications that want to send a file to the spoiler. Press.
Being a purely software problem, therefore, it is not surprising that printing problems also occur with PDF printing which, in reality, does not need any USB port. This bug that prevents you from printing occurs with all versions of Windows 10 and also with Windows 8.1 and Windows Server.
Printer Problems: How to Fix Them
"Microsoft is working on a solution and will release an update as soon as more information is available", with these few words the Redmond company admits the problem and postpones the solution. In the meantime, those who are experiencing problems similar to those described (both with USB physical printer and virtual printing in PDF), can try to update drivers or, if that's not enough, uninstall the update KB4557957 while waiting for Microsoft to correct this annoying bug.
Windows 10, problems with PDFs too after update