I'm having the same problem. Tried all the tips and tricks in the forum but no luck.
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I wrote about this headache on June the 16th and only one guy replied but lots and lots of peple must be having this problem so Why on Earth cant some bod sort out this millais its and absolute scandle
On June the 16th I wrote:
Help is sought, if it is available.
Arduino IDE., starts: shows the usual Arduino blue panel; hangs for about 60 seconds then disappears leaving a warning box that states "An error occurred while starting the application".
I have been running the Arduino IDE., for some years now quite successfully until yesterday when my Windows system was updated. Unfortunately System Restore Protection was switched off and not by me.
Has anybody got the methodology and or knowledge to enable me to run this program please. Downloading a completely fresh system download has no effect, ie., it still will not run and provides the self same warning box.