Cannot install TeamCity-2020.2.1

Hello Alexey,

From what I could see, this error could warn you that either the installer itself is corrupted (does the issue occur if you re-download the installer? Is the hard drive you save installer to healthy?), or there is some issue which prevents the check completion (hard drive is out of space, AV software blocks up the process, etc.). This is the issue with NSIS itself, so this list may come handy: https://nsis.sourceforge.io/Why_do_I_get_NSIS_Error%3F

The virus did not give access to the SSD where I tried to install "teamcity", so an error occurred. Therefore I had a virus on my computer or your soft was coincidentally corrupted by malware. Virus was opened up when I was installing TeamCity, because after checking with doctor web it showed me malware soft on my PC (not TC, other soft). I think that is coincidence that it happened after my tries to install teamCity, but I'd recommend to check your .msc distribution, because I do not surely know do virus exactly was on my computer before TC installation or not. No other programms was launched or downloaded with TC, I downloaded it from your official site. Sorry for inconvinience if your soft is clear.

Hello Alexey,

Thank you for the update! Any chance you still have the report from Dr. Web (if yes, could you please share it via https://uploads.jetbrains.com)? Also, could you please confirm the TeamCity version/package so I`ll double-check?