Avast causing slow boot
Author: h | 2025-04-24
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Avast Causes Extremely Slow Boot - Avast WEBforum
Malware scans etc. Once I get over the slow boot, the pc runs as good as usual and everything else is ok. I might try uninstalling and re-installing Avast and see if that does anything.Is there any way I can disable Avast (without uninstalling) to try a boot up and see if it Avast that is causing the problem? Tarq57 December 13, 2009, 7:30am 10 OK, but with what applications have you performed these scans?I might try uninstalling and re-installing Avast and see if that does anything.Wouldn’t hurt, or you could try repairing it. I don’t think there is enough info here to say whether re-installing it will do any good or not.Is there any way I can disable Avast (without uninstalling) to try a boot up and see if it Avast that is causing the problem? No, sorry. Or not that I know of. Avast isn't intended to be used that way. It's either on or uninstalled. I have read about workarounds, usually in the situation of someone who just wanted to use it as a demand scanner, but the workarounds are never really satisfactory. system December 13, 2009, 8:45am 11 What other applications are set to auto start?START-UP APPLICATIONSDO YOU REALLY NEED ALL OF THEM? to PROFILE then Modify Profile then Forum Profile Information then Signature: and put information about your system if you like just like my sigature. system December 13, 2009, 10:16am 12 I’ve done scans with…Windows DefenderSuperantiSpywareSpybot S&DAvastI also have SpywareBlaster installed.My startup prog’s really System will slow down… :-\ system August 7, 2004, 12:47pm 6 Hi Technical, thanks for your reply but I need a little clarification I’m afraid, do you mean that NT systems can not have two AVs installed even if one is only used as an on-demand scanner?Sorry for the newbie question but I am a newbie trying my hardest to understand. I’ve been on the net for 15 months now and knew very little about security on the web and I seem to learn some thing new everyday. Delta system August 7, 2004, 2:52pm 7 AVG starts at boot with Avast, but only Avast is configured as a “real-time” scanner. I use AVG for its Boot scan, scan on demand, and hook to scan downloads.HTH,tomZ Lisandro August 7, 2004, 3:52pm 8 Delta, like Tom wrote, you could have but, there is a lot of buts… You can have an incompatibility or even do not have some files to be scanned because system mess the drivers it should load to scan a file. For instance, in the past, NAV (only on-demand) prevents avast to scan exe files under DOS). Take care, you never know.About what Tom posted, you can have avast doing the same - and better - as AVG:Boot time scanning (or even only memory and startup itens)Scanning on-demandScan downloads (C:\Program Files\Alwil Software\Avast4\ashQuick.exe) system August 7, 2004, 4:10pm 9 Thank you TomZ and Technical for your explanations. I now understand what you were saying. Thankyou both for your time.DeltaIncredibly Slow Boot of XP. Avast the Cause?
What it look like when I’m not doing anything.Add to that anywhere between 30-70 CPU usage when loading websites, using programs, etc.I have not done anything to my PC, OS or programs. Avast just decided to start hogging up everything in the background right after the latest update. FNG13 March 28, 2020, 6:11pm 2 Okay, so now its running at 70-85 CPU and over 750k memory usage CONSTANTLY, and causing freezes constantly.So…Since Avast went from “Good.” to “Worse than McAfee.” in a matter of hours, anyone have any good alternatives? Cause my PC is actually becoming unusable with this BS resource hogging going on in the background.And no, its not doing scans, its not doing updates, its just idling and still eating up EVERYTHING. FNG13 March 28, 2020, 7:40pm 3 So, things I tried:Changing the settings and seeing if anything makes a difference. Didn’t work.Logging on/off. Didn’t work.Restarting the computer. Didn’t work.Using the Repair-function. Didn’t work.Reinstalling. Didn’t work.Only thing left to do is uninstall. Asyn March 29, 2020, 5:50am 4 Which Avast…? (Free/Pro/IS/Premium)Which version/build of Avast…?OS…? (32/64 Bit…? - which SP/Build…?)Other security related software installed…?Which AV(s) did you use before Avast…? avast678 April 17, 2020, 12:32am 5 win 7 ultimateAvast Premium Security 20.2.2401 (build 20.2.5130.568)Virus def: 200414-0UI version 1.0.505I had the same problem except maybe worse as I had CPU usage up to 100% and the UI wasn’t even loading.I also tried what you did and was getting very alarmed.The problem has resolved after doing the following, I doubt this is a global cure, but it worked in my case.Firstly, I noticed crashes with the avast browser updating so in the boot up (Run|msconfig) I disabled loading the browser .Then, I did the Win 7 critical updates - even though supposedly it is not supported and I assume they are laced with surveillance tools, nevertheless I did it, restarted etc.Then I chose to uninstall Avast - but then chose the Repair option when prompted. Problem remained.I then downloaded the latest Avast Premium Security and installed. Restarted Windows and it now seems to work normally. Hey i´ve got the same problem. Avast slowing internet speed. Avast causing slow internet,Avast making Internet Slow,Avast antivirus slowing down internet,Avast slows internet,Avast slowing internet,Avast slowing internet speedAvast causes slow boot and black screen
If malware prevents Avast Antivirus from running a Boot-Time Scan, you can run Windows in Safe Mode and use the Boot-Time Scan scheduler.Run a Boot-Time ScanReboot your computer and start Windows in Safe Mode with Command Prompt according to the instructions on the relevant Windows or third party support pages: Windows 10 | Windows 8/8.1 | Windows 7 | Windows Vista | Windows XP In the Command Prompt window, type the CD command and the location of your Avast installation file (C:\Program Files\Avast Software\Avast by default), then press Enter ↵. If typing the default location does not work, you may have saved your Avast installation file to a different location. Type the CD command followed by the location where your Avast installation file is saved and press Enter ↵. Type the sched /A:* or sched.exe /A:* command, then press Enter ↵ to schedule a default Boot-Time Scan of all local drives on your system. To view all command line options, type sched or sched.exe, then press Enter ↵. When the Command Prompt dialog indicates that the Boot-Time Scan is scheduled, type shutdown /r, then press Enter ↵ to re-boot your computer to run the Boot-Time Scan. After your computer restarts, a Boot-Time Scan progress screen appears as Windows begins loading. For any detected threat select which action to take. The scan usually takes several minutes but the duration varies depending on the speed of your system and the number of files to be scanned. When the scan is completed or skipped, Windows continues booting up.To skip the scan, press the Esc key on your keyboard. Avast Premium Security 21.xAvast Free Antivirus 21.x Microsoft Windows 11 Home / Pro / Enterprise / EducationMicrosoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bitMicrosoft Windows 8.1 / Pro / Enterprise - 32 / 64-bitMicrosoft Windows 8 / Pro / Enterprise - 32 / 64-bitMicrosoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1 with Convenient Rollup Update, 32 / 64-bit Updated on: 02/06/2022 Become a Seller Business Software Compare Software Avast Antivirus VS ZoneAlarm Let’s have a side-by-side comparison of Avast Antivirus vs ZoneAlarm to find out which one is better. This software comparison between Avast Antivirus and ZoneAlarm is based on genuine user reviews. Compare software prices, features, support, ease of use, and user reviews to make the best choice between these, and decide whether Avast Antivirus or ZoneAlarm fits your business. Rating & Review Platforms Recommended Pricing Techjockey Verified Free Trial Lifetime Plan Offers Available offers & discounts Save upto 28%, Get GST Invoice on your business purchase Buy Now & Pay Later, Check offer on payment page. Save upto 28%, Get GST Invoice on your business purchase Buy Now & Pay Later, Check offer on payment page. Get Exclusive Offer Best deals by our expert on your business requirements Ratings Overall ratings 4.6 7 Ratings & 7 Reviews 92% Likelihood to Recommend 4.3 18 Ratings & 13 Reviews 88% Likelihood to Recommend Pros & Cons Pros eScan has been providing antivirus software for final users for a while now. It ...Read more - Paras Kapoor Oct 02, 2022 This software boasts a wide range of features and is a great pick for all rounde...Read more - lokesh varma Oct 01, 2022 I bought the paid/ premium version because there was a free version available, I...Read more - Aamir Khan Dec 11, 2024 I have been searching for a solution that offers VPN integration. It feels good ...Read more - Sajjad Dec 01, 2024 Cons There is nothing bad about eScan Antivirus which I can think of as of now. - Paras Kapoor Oct 02, 2022 My only issue is that the boot scan can sometimes be very slow. - lokesh varma Oct 01, 2022 I have noticed that sometimes ZoneAlarmAvast causes slow boot with black screen - YouTube
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OK. If your default view is set as Category, select Uninstall a program in the Programs panel. ...or if your default view is set as Icons, select Programs and Features. Click Installed On to sort the programs by the most recent date of installation. Uninstall any recently installed unknown programs from unknown publishers by right-clicking in the relevant program panel and selecting Uninstall. Enable the PUP scan in Avast Antivirus by completing the following steps: Open Avast Antivirus and go to ☰ Menu ▸ Settings. Select Protection ▸ Core Shields. Under Potentially unwanted programs & tools tick the circle next to Resolve automatically to enable it. Set up a Boot Time Scan in Avast Antivirus to run on the next reboot by completing the following steps: Open Avast Antivirus and go to Protection ▸ Virus Scans. Under Boot Time Scan click Open now. Click Install definitions, then click Run on next PC startup. When you click Install definitions on the Boot-Time Scan screen, Avast Antivirus downloads all virus definitions from a cloud database. If you skip installing specialized definitions, Boot-Time Scan scans your PC based only on the last virus definitions that were downloaded. If Install definitions is not displayed on the Boot-Time Scan screen, your virus definitions are up to date. Restart your Windows PC. When the system restarts, a Boot-Time Scan progress screen appears. The scan usually takes several minutes, but the duration varies depending on the speed of your system and the number of files being scanned. To skip the scan, press the Esc key on your keyboard. For any detected threat, Avast Antivirus applies the action specified in your application settings. If you disabled automatic actions and threats are detected, tick the boxes next to relevant threats and select Resolve all or Resolve selected. When the scan is complete, Windows continues booting up. Remove a browser hijackerFollow the steps below to resolve the issue:Ensure your Avast One application is up to date by following the steps in this article: Updating Avast Antivirus. Reset the affected web browser to its default settings by following the steps in. Avast slowing internet speed. Avast causing slow internet,Avast making Internet Slow,Avast antivirus slowing down internet,Avast slows internet,Avast slowing internet,Avast slowing internet speed As I've said, the boot time with Avast off already seems long to me - but then again I might just be getting impatient - so the slow down might not be caused by Avast alone. Still theAvast [] AND [] Cause Major Boot Slowdown. - Avast
확장 기능도 제공합니다. Avast Online Security 및 Avast SafePrice 라고(Avast SafePrice) 합니다 . Avast Online Security 웹 브라우저 확장 프로그램(web browser extension) 은 액세스를 차단하고 감염된 웹 사이트를 방문하려고 할 때 알려줍니다. 하지만 다른 하나인 Avast SafePrice 는 (Avast SafePrice)Avast 에 정보를 보내고 그 대가로 타겟 광고를 제공 함으로써 온라인 쇼핑 시 더 나은 거래를 제공하기 위해 만들어졌습니다 . Windows 10 에서 이러한 웹 브라우저 확장은 기본적으로 Google Chrome 및 Mozilla Firefox(Google Chrome and Mozilla Firefox) 에 설치됩니다 . Avast SafePrice 는 보안을 향상시키는 데 아무런 도움이 되지 않으므로 비활성화하고 제거하는 것이 좋습니다 .또한 Avast Premier 가 (Avast Premier)테스트 컴퓨터 의 (test computer)부팅 시간(boot time) 을 얼마나 증가 시켰는지 살펴보았습니다 . 이를 위해 BootRacer 를 사용하여 이 (BootRacer)보안 제품군(security suite) 을 설치하기 전후 의 부팅 시간(boot time) 을 측정했습니다 . 불행히도, 그 증가는 약 30%로 상당했습니다. 하지만 Avast Premier 는 (Avast Premier)RAM 을 거의 사용하지 않으며 평균 소비량(RAM) 은 65MB입니다 .인터넷 또는 로컬 네트워크 속도가 Avast Premier(Avast Premier) 의 영향을 받는지 확인하기 위해 Speedtest.net 및 LAN Speed Test 로 몇 가지 테스트도 실행했습니다 . 우리가 실행한 테스트에서는 다운로드나 업로드 속도가 보안 제품군(security suite) 의 영향을 받지 않는 것으로 나타났습니다 . 즉, 네트워크 전송(network transfer) 속도에 부정적인 영향을 미치지 않으며 인터넷 데이터 전송에 영향을 미치지 않습니다.Avast Premier는 Windows 및 해당 네트워킹 기능과 잘 통합된 보안 제품으로 보입니다. 그러나 (Avast Premier appears to be a security product that is well integrated with Windows and its networking features. However, we do not )보안 제품이 "안전한 가격, 더 나은 거래"를 약속하는 웹 브라우저 확장을 번들로 제공하고 Avast Premier와 같이 컴퓨터 부팅 시간을 늘리는 것을 좋아하지 않습니다 (it when a security product is bundling web browser extensions that promise "safe prices, better deals," and when it increases the boot time of our computer, like Avast Premier appears to be doing.).(like )사용 및 구성 용이성Avast Premier 는 부드러운 그라디언트와 가는 선을 기반으로 한 디자인으로 매우 멋진 사용자 인터페이스 를 제공합니다. (user interface)강조 색상은 녹색과 자주색이며 메인 콘솔을 통해 컴퓨터 상태를 한 눈에 알 수 있으며 "스마트 스캔 실행"도 가능합니다. ("Run Smart Scan.")이 버튼을 누르면 컴퓨터에서 바이러스, 오래된 소프트웨어, 평판이 나쁜 브라우저 추가 기능, 네트워크 위협, 성능Comments
Malware scans etc. Once I get over the slow boot, the pc runs as good as usual and everything else is ok. I might try uninstalling and re-installing Avast and see if that does anything.Is there any way I can disable Avast (without uninstalling) to try a boot up and see if it Avast that is causing the problem? Tarq57 December 13, 2009, 7:30am 10 OK, but with what applications have you performed these scans?I might try uninstalling and re-installing Avast and see if that does anything.Wouldn’t hurt, or you could try repairing it. I don’t think there is enough info here to say whether re-installing it will do any good or not.Is there any way I can disable Avast (without uninstalling) to try a boot up and see if it Avast that is causing the problem? No, sorry. Or not that I know of. Avast isn't intended to be used that way. It's either on or uninstalled. I have read about workarounds, usually in the situation of someone who just wanted to use it as a demand scanner, but the workarounds are never really satisfactory. system December 13, 2009, 8:45am 11 What other applications are set to auto start?START-UP APPLICATIONSDO YOU REALLY NEED ALL OF THEM? to PROFILE then Modify Profile then Forum Profile Information then Signature: and put information about your system if you like just like my sigature. system December 13, 2009, 10:16am 12 I’ve done scans with…Windows DefenderSuperantiSpywareSpybot S&DAvastI also have SpywareBlaster installed.My startup prog’s really
2025-04-01System will slow down… :-\ system August 7, 2004, 12:47pm 6 Hi Technical, thanks for your reply but I need a little clarification I’m afraid, do you mean that NT systems can not have two AVs installed even if one is only used as an on-demand scanner?Sorry for the newbie question but I am a newbie trying my hardest to understand. I’ve been on the net for 15 months now and knew very little about security on the web and I seem to learn some thing new everyday. Delta system August 7, 2004, 2:52pm 7 AVG starts at boot with Avast, but only Avast is configured as a “real-time” scanner. I use AVG for its Boot scan, scan on demand, and hook to scan downloads.HTH,tomZ Lisandro August 7, 2004, 3:52pm 8 Delta, like Tom wrote, you could have but, there is a lot of buts… You can have an incompatibility or even do not have some files to be scanned because system mess the drivers it should load to scan a file. For instance, in the past, NAV (only on-demand) prevents avast to scan exe files under DOS). Take care, you never know.About what Tom posted, you can have avast doing the same - and better - as AVG:Boot time scanning (or even only memory and startup itens)Scanning on-demandScan downloads (C:\Program Files\Alwil Software\Avast4\ashQuick.exe) system August 7, 2004, 4:10pm 9 Thank you TomZ and Technical for your explanations. I now understand what you were saying. Thankyou both for your time.Delta
2025-04-23What it look like when I’m not doing anything.Add to that anywhere between 30-70 CPU usage when loading websites, using programs, etc.I have not done anything to my PC, OS or programs. Avast just decided to start hogging up everything in the background right after the latest update. FNG13 March 28, 2020, 6:11pm 2 Okay, so now its running at 70-85 CPU and over 750k memory usage CONSTANTLY, and causing freezes constantly.So…Since Avast went from “Good.” to “Worse than McAfee.” in a matter of hours, anyone have any good alternatives? Cause my PC is actually becoming unusable with this BS resource hogging going on in the background.And no, its not doing scans, its not doing updates, its just idling and still eating up EVERYTHING. FNG13 March 28, 2020, 7:40pm 3 So, things I tried:Changing the settings and seeing if anything makes a difference. Didn’t work.Logging on/off. Didn’t work.Restarting the computer. Didn’t work.Using the Repair-function. Didn’t work.Reinstalling. Didn’t work.Only thing left to do is uninstall. Asyn March 29, 2020, 5:50am 4 Which Avast…? (Free/Pro/IS/Premium)Which version/build of Avast…?OS…? (32/64 Bit…? - which SP/Build…?)Other security related software installed…?Which AV(s) did you use before Avast…? avast678 April 17, 2020, 12:32am 5 win 7 ultimateAvast Premium Security 20.2.2401 (build 20.2.5130.568)Virus def: 200414-0UI version 1.0.505I had the same problem except maybe worse as I had CPU usage up to 100% and the UI wasn’t even loading.I also tried what you did and was getting very alarmed.The problem has resolved after doing the following, I doubt this is a global cure, but it worked in my case.Firstly, I noticed crashes with the avast browser updating so in the boot up (Run|msconfig) I disabled loading the browser .Then, I did the Win 7 critical updates - even though supposedly it is not supported and I assume they are laced with surveillance tools, nevertheless I did it, restarted etc.Then I chose to uninstall Avast - but then chose the Repair option when prompted. Problem remained.I then downloaded the latest Avast Premium Security and installed. Restarted Windows and it now seems to work normally. Hey i´ve got the same problem
2025-04-07If malware prevents Avast Antivirus from running a Boot-Time Scan, you can run Windows in Safe Mode and use the Boot-Time Scan scheduler.Run a Boot-Time ScanReboot your computer and start Windows in Safe Mode with Command Prompt according to the instructions on the relevant Windows or third party support pages: Windows 10 | Windows 8/8.1 | Windows 7 | Windows Vista | Windows XP In the Command Prompt window, type the CD command and the location of your Avast installation file (C:\Program Files\Avast Software\Avast by default), then press Enter ↵. If typing the default location does not work, you may have saved your Avast installation file to a different location. Type the CD command followed by the location where your Avast installation file is saved and press Enter ↵. Type the sched /A:* or sched.exe /A:* command, then press Enter ↵ to schedule a default Boot-Time Scan of all local drives on your system. To view all command line options, type sched or sched.exe, then press Enter ↵. When the Command Prompt dialog indicates that the Boot-Time Scan is scheduled, type shutdown /r, then press Enter ↵ to re-boot your computer to run the Boot-Time Scan. After your computer restarts, a Boot-Time Scan progress screen appears as Windows begins loading. For any detected threat select which action to take. The scan usually takes several minutes but the duration varies depending on the speed of your system and the number of files to be scanned. When the scan is completed or skipped, Windows continues booting up.To skip the scan, press the Esc key on your keyboard. Avast Premium Security 21.xAvast Free Antivirus 21.x Microsoft Windows 11 Home / Pro / Enterprise / EducationMicrosoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bitMicrosoft Windows 8.1 / Pro / Enterprise - 32 / 64-bitMicrosoft Windows 8 / Pro / Enterprise - 32 / 64-bitMicrosoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1 with Convenient Rollup Update, 32 / 64-bit Updated on: 02/06/2022
2025-04-05