The program worked after reinstalling on top of the old one. Question: when reinstalling, I again entered the license number - are there any restrictions on the number of entries - if I reinstall the program every week and then lose my license, is it not better to immediately abandon your program and return the money?

Hello. Try temporarily disabling your antivirus and firewall, try updating the .NET Framework, try run program as administrator.

Thanks for the answers, I read the FAQ before asking for help. Accordingly, I previously did all these steps, but only reinstalling the program with re-introducing the license helped. That was what scared me, since the only noticeable action with the computer that I did was updating the drivers, in particular, installing Intel Rapid, which, perhaps, the program identified as changing the hardware of the computer. Accordingly, another question - I periodically upgrade my computer - will this affect my license?