Steam not opening Windows cannot find 'C:\Program Files (x86)\Steam\Steam.exe

[Not Ali]

So recently, I had a problem with my laptop. It couldn't connect to the internet due to "Wi-Fi doesn't have a valid IP configuration", so I went to a repair shop and the guy told me that my antivirus Avast was causing problems to my driver. So, he uninstalled it and did something (sorry not tech savvy here). Now, I can access the internet. However, I cannot open my steam. It always shows this error:

Windows cannot find 'C:\Program Files (x86)\Steam\Steam.exe'. Make sure you typed the name correctly, and then try again.

Please do help, I don't really want to uninstall and re-install steam all over again cause I have tons of games installed and don't want to re-download it.

[Iceira]

Just try install steam again at same place. that should fix it.

or locate it at drev is it even there "C:\Program Files (x86)\Steam\Steam.exe"
click file to run it and see if steam can fix itself.

[Not Ali]

I did the same 2 things you mentioned and the same error appeared

[Iceira]

add allow rule in antivirus app, maybe app see or already block it, and not the first time its seen before , app block dont tell they are blocking it.

other old issue run steam.exe as admin. ( right click it )

or maybe anti virus has move it to quarantined folder, and will make sense, if file is not there where it use to be. ?