"MultiMC failed to commit instance, even after multipleretries. It is being blocked by something."

[WitheredToolip]

Operating System

No response

Description of bug

Whenever I start any version the error "MultiMC failed to commit instance, even after multipleretries. It is being blocked by something." appears with no explanation.
I tried redownloading, changing the Java version and nothing works. (Also, my account is properly connected and I do have java in my computer)

Steps to reproduce

Loggin in your microsoft acount, press "Add instance", select a version, press "OK"

Suspected cause

No response

This issue is unique

• I have searched the issue tracker and did not find an issue describing my bug.

[phit]

as the error is saying, something on your pc is blocking multimc from writing its files

[PoiDaisuki]

check your anti-malware software, on my side kaspersky is blocking it without notification. From the log looks like some mod's jar file is recognized suspicious, so mmc's operation is blocked, and the instance craation is canceled