Install and Updates

This article guides you on how to install Bitdefender on Windows OS. Before proceeding with the installation, make sure your PC meets the system requirements. https://www.bitdefender.com/consumer/support/answer/28558/ You can also watch the steps presented in the video below: As always, feel free to ask any questions in…

I'm sure most of us know how to find our version, build number via the BD system tray icon, right-click, About. As well as clicking the life preserver at the top of the main UI Dashboard, and Product information at the bottom. But here is the link to confirm that the build you're on, is the most current build available.…

Bonjour. Mon logiciel Bitdefender télécharge une mise à jour dénommée "sav/explode.dll". Je n'avavais jamais vu un tel nom auparavant. Est-ce une mise à jour légitime ou un hijacking réseau me faisant télécharger (via le programme antivirus Bitdefender lui-même, pas sur un site obscur) une dll pourrie ? Google ai m'affirme…

this doesn’t fix the problem !

Subject: Bitdefender interfering with Windows 11 (23H2) feature update installation Environment: Windows 11, version 23H2, build 22631.7582 (upgrading to 24H2/25H2) Bitdefender [product name/version here] OK; disclaimer: I must have been sleeping in class, not noticing that the major updates were not being installed over…

Hello. My computer was running very slow. The RAM usage was 85%. I took it to Best Buy Geek Squad who said the number resource user on all tests was my antivirus, i.e., Bitdefender. Are others experiencing this? If so, what did you do about it? What do you suggest I do? I like Bitdefender but it's really slowing down my…

Hi, Today after an update that completely changed Bitdefender's UI (which is awful btw), the security widget that was on my desktop is gone. Also when I right-click on the Bitdefender icon in the system tray some features are gone, I can no longer see the product information with the exact dates for the last product…

hi, I installed Bitdefender Total Security on my Windows 11 Laptop. Since the installation, I cannot back up the laptop onto a USB drive as the back up software is reporting the drive to be inaccessible. I cannot access the drive to read files but the back up software does not work.

(1) Following Clean install of W11 (from an MS Account to a local account ), all attempts at installing Total Security fail - all I obtain is BD Agent whose function is doubtful. (2) Contacting support means obtaining some sort of robotic (or standard) response recommending BD Central and access to "My subscriptions" .…

VPN and security solution now integrated into Client. New Client: 2.0.184 My Bitdefender has been updated to Version 28, Client version points to 2.0.184 and the Security tab points to Version 28.

I have a license for Internet Security, but I want to install only the Antivirus Plus version (the one without the firewall). Is this possible, and if so, how do I do it? The installation process forces the use of the license associated with my account, and I cannot change this. I should also mention that I do not want to…

J'ai 81 ans et évidemment je suis allergis a

I have three Windows 11 systems with valid Ultimate Security subscriptions. All three are still on Bitdefender 27. Are the upgrades still rolling out? Thanks.

Using Bitdefender Total Security on a Windows 11 Home version, I have been prompted two or three times by Bitdefender Dashboard that I needed to update my version and each of these times it was running long on 0% with no upgrade being downloaded so I had to cancel the update. In Settings I noticed that Automatic & Silent…

The DiscoverySrv.exe version 27.1.1.45 that installed on my laptop on 14 August continuously is using 25% of my CPU and generating a lot of heat on the laptop. This was not an issue prior to this version being installed during the 14 August update. The file itself shows as created on 11 August. My laptop is running Windows…

Hi everyone, I'm posting to see if anyone else has encountered this issue or if the Bitdefender team can advise on a fix. Inside Bitdefender Mobile Security / Ultimate Security on Android, under the Scam Protection Pro menu, both SMS Protection and Scam Notification Protection fail to remain active. When toggling them on,…

Hello, my Bitdefender account cannot log in. It keeps showing that it cannot connect to the server. Could you please tell me how to resolve this? The network is completely normal.

At present Firewall is showing that files are modified and wants to connect when the file is not ( at least on disk, checked with hashes ). Either an update was pushed that introduced an issue or I have a very stealthy in memory rootkit that is changing all sort of things on the fly and not stepping on disk and Bitdefender…

I have purchased Bitdefender Premium Security to use on a new laptop for my wife and I. I have installed it using the admin account (which is also my MS registered account). I have sent emails to my wife and I (using a different e-mail address), which have been received. So far so good! Now when we accept the invite, we…

Bitdefender Internet Security build 27.0.55.287 on a Windows 11 Home version 10.0.26200 build 26200 PC. I go to Settings…Update and turn Update Automatically on as well as turn on Silent update. After some period of time (random amonts, but more than a day), I check again and both the settings are back off. I turn them…

Hello, I have two remote PCs, A and B. I remote to PC A then use NoMachine to connect to PC B. A while back I was trying to add a firewall rule to only allow a NoMachine on port 4000 from a specific IP address belonging to PC A. I added the rule, and immediately after adding it I was disconnected from the NoMachine…

The Bitdefender Antivirus Plus application has stopped updating virus updates automatically. I have to do it manually. What is the reason for this and how can I fix the error?

Hi Bitdefender Support Team & Community, I am seeking assistance with a critical system crash occurring on my Windows 11 system immediately after installing Bitdefender Ultimate Security. Problem Description Shortly after installing Bitdefender Ultimate Security (or during system boot with Bitdefender running), Windows 11…

Hello. I'm using Bitdfender on Windows 11 Home and I am writing this post because I have a symptom that I would like to ask a question about. I just enabled Secure Boot and since then I've been getting the following logs in Event Viewer. Event ID 3033 Code Integrity determined that a process…

My computer's I want to check is standalone's not on any networks. How do I check if they are still safe? One is with windows 7 and 4 with windows XP How can I scan them?

i uninstalled b.d. on win 11 pro , but i started it's auto reinstallation after the restart, then I used this tool to uninstall it in the safe mode as Admin. The initial uninstallation of Bitdefender completed with errors. To address this, I first ran the official Bitdefender Uninstall Tool, and immediately after that, I…

Installando il nuovo Bitdefender SecurePass in sostituzione del precedente password manager quando arrivo a sbloccare il Vaulet mi dice che ho già creato la password ma inserendo quella che usavo per password manager mi da errore e anche se uso la chiave di ripristino password mi da errore . Come posso fare per entrare in…

After Bitdefender updates, it starts checking all of my 16TB mechanical drives. It takes days for it to check my slow 5400rpm drives. The sound of these drives in a quiet room are driving me crazy! This happened before about a month ago and now today (12.05.2026) it happening again!!! How to stop this from happening ever…

Forgive me if I do not use the correct terms as I am Dutch. When I try and open the installation file of Total Security as an administrator, nothing happens, except there is a message on my screen: flow.bitdefender.net is trying to save something Can someone please help

Hello, I'm currently running Bitdefender Total Security on two different Windows 11 PC. One of the machines is quite old, the other one is much more recent. I updated Bitdefender on the two PC manually (using right click on the icon > update). After updating both machines, I can see the threat database version number is…

Descrição do Problema: Sistema Windows 10/11 (build 26100) começou a apresentar telas azuis com o código de erro APC_INDEX_MISMATCH (0x00000001). Análise Técnica: Ao analisar o arquivo de despejo de memória (dump) com o WinDbg, foi possível identificar que o processo ativo no momento da falha era o EPSecurityServ.exe,…