Why is there a delay before starting any program?

Question

Windows

Since the beginning of this year, there have been very long delays before the launch of any program.
Even the "Task Manager" called via Ctrl+Shift+Esc takes a painfully long time to open. Process Monitor takes about 5 seconds: winlogon creates the taskmgr.exe process after a five-second pause after it calls the QueryNameInformationFile function for taskmgr.exe.
No programs were installed, the hardware often did not change either.
System: Windows 7 Ultimate 64 (only rare manual updates with full control)
A good SSD drive that is about six months old, performs speed tests without problems, folder transitions are fast and clear.
Antivirus is disabled.
UPD:
The problem is in ESET SS5 - even if it is disabled, there is still a pause. Appeared after one of the fresh updates of this year. When the antivirus is completely removed, the problem goes away. After a fresh installation, there is no problem either, until updates are downloaded. Complete disabling, disabling checking folders, disabling checking when opening a file or starting a program does not solve the problem :(

Answer 1

The problem was in ESET Smart Security 5 antivirus. More precisely, in the update that appeared in early January 2020. After replacing with a newer version, the problem disappeared. Although it is not entirely clear why, because updates, including modules, they should have the same.