How disinfect PC after reinstalling Windows, Bitdefender? virus symptoms still there..

CristiC

Hi,

1. Virus symptoms before re-install: lots of clicks on the screen, random drives to internet sites, clone wi-fi network and connect there automatically after restart, difficulties in pressing the shut-down button, etc
2. Re-installed Win11 (2 times), installed Bitdefender
3. After 2-3 days symptoms reappeared and the hassle reinstated on PC (symptoms per 1., above)

I am not a specialist have no clue of what's going on, hence could not get the hang of it; also, afraid that this would soon spread across on other computers in the local network.

Please help! Thanks

Gjoksi

Hello.

Do the following:

1) Start your PC in Safe Mode, by following these steps:

https://support.microsoft.com/en-us/windows/start-your-pc-in-safe-mode-in-windows-92c27cff-db89-8644-1ce4-b3e5e56fe234

2) Open the Run command:

https://www.makeuseof.com/windows-open-run-command-dialog-box/

and run the below commands one by one:

temp - delete all the folders/files in the folder

%temp% - delete all the folders/files in the folder

prefetch - delete all the folders/files in the folder

3) Restart your PC in General Mode, by following these steps:

https://www.techwalla.com/articles/how-to-restart-a-computer-in-normal-mode

4) Reset/Refresh your browsers:

Google Chrome - https://support.google.com/chrome/answer/3296214?hl=en

Mozilla Firefox - https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

Microsoft Edge - https://malwaretips.com/blogs/reset-microsoft-edge/

Opera - https://browsersolution.com/reset-opera-browser

Vivaldi - https://help.vivaldi.com/desktop/install-update/full-reset-of-vivaldi/

Brave - https://support.brave.com/hc/en-us/articles/360017903152-How-do-I-reset-Brave-settings-to-default-

5) Run a System Scan with your Bitdefender program

6) Restart your PC

7) If the steps provided above didn't help, disinfect your PC with Bitdefender Rescue Environment, by following these steps:

https://www.bitdefender.com/consumer/support/answer/29132/

8) If the steps provided above didn't help, do the following steps:

Take screenshot(s) of the issue,

create a log file on your Windows device using Bitdefender Support Tool, by following these steps:

https://www.bitdefender.com/consumer/support/answer/1733/

and

create a log file on your Windows device using BDsysLog, by following these steps:

https://www.bitdefender.com/consumer/support/answer/1922/

Next, contact Bitdefender Consumer Support by e-mail:

https://www.bitdefender.com/consumer/support/help/

with short description of the issue.

After that, you will get an automated reply by the Bitdefender Customer Care Team, with your ticket number.

Now, in reply to that automated reply, you can send the screenshot(s) you already took and the log files you already created in the first step.

Since you are all done, just wait for the support engineers to investigate your issue and find a solution to fix the issue.

Remember that the screenshot(s) and the log files will help a lot to the support engineers for better and faster investigation on your issue and finding a solution.

Regards.

Flexx

https://community.bitdefender.com/en/discussion/comment/324224#Comment_324224

In addition to above steps as stated by @Gjoksi, try to reset your network also.

Reset your network settings: Open command prompt(cmd) as administrator and type below stated commands one by one and hit enter.

ipconfig/flushdns

ipconfig /registerdns

ipconfig /release

ipconfig /release6

ipconfig /renew

ipconfig /renew6

netsh winsock reset

netsh int ip reset

netsh int ipv6 reset

netsh int ip reset all

arp -d

nbtstat -R

nbtstat -RR

netsh winhttp reset proxy

netsh advfirewall reset

netsh int tcp set heuristics disabled

netsh int tcp set global autotuninglevel=disabled

netsh int tcp set global rss=enabled

netsh int tcp show global

exit

Regards

Flexx

Had a conversation with the user via PM. Since being a novice, the user is unable to perform the requested steps provided by @Gjoksi and me. Hence, had to personally create a batch file for him which could perform all the functions like cleaning of temporary files, resetting network settings to default, resetting windows update to default and resetting web browser to default.

Regards