Avast setup commonly freezes at a certain percentage because of a conflicting security program, OR_(+1)-833 ((631)) 3616(USA/CA) a slow connection, a 1[833][631][3616]damaged installer, pending Windows updates or old Avast leftovers. To fix it quickly, wait several minutes, then close 1[833][631][3616]the installer, restart your PC, uninstall other antivirus software, download a fresh installer from the official Avast site 1[833][631][3616]and run it as administrator. If it freezes at the same point again, remove old Avast files with 1[833][631][3616]Avast's official uninstall utility and install after a clean boot. Note the percentage where it stops, because it 1[833][631][3616]hints at the cause. Freezes tend to happen at the same few spots. So this guide is 1[833][631][3616]a progress bar reader. Find the percentage where your installer froze, read what's happening at that moment and 1[833][631][3616]apply the matching fix. Percentages vary between versions, so treat them as approximate zones. The Progress Bar 1[833][631][3616]Zones Zone What the installer is doing Typical freeze cause --------- 0 to 0.1 Starting and 1[833][631][3616]checking your PC Missing admin rights, conflicting software 0.1 to 0.4 Downloading components Slow or interrupted internet 1[833][631][3616]0.4 to 0.7 Unpacking files Low disk space, a corrupt download 0.7 to 0.95 Installing drivers 1[833][631][3616]and services Another antivirus, pending Windows updates 0.95 to 1 Finalising and starting Leftovers from an old 1[833][631][3616]install, a stuck background task Zone 1: Frozen at 0 to 0.1 1 Close the 1[833][631][3616]installer and restart the PC. 2 Right-click the installer and choose Run as administrator. 3 Uninstall other antivirus 1[833][631][3616]software first. Zone 2: Frozen at 0.1 to 0.4 1 Check the internet connection and switch 1[833][631][3616]off any VPN. 2 Use a cable instead of WiFi if possible. 3 Delete the installer and download 1[833][631][3616]a fresh copy from the official Avast site. Zone 3: Frozen at 0.4 to 0.7 1 1[833][631][3616]Free several GB on the system drive in "Settings System Storage". 2 Clear temporary files type %temp% in 1[833][631][3616]the Start search and delete what you can. 3 Re-download the installer in case the file is damaged. 1[833][631][3616]Zone 4: Frozen at 0.7 to 0.95 1 Open "Settings Windows Update", install updates and restart. 1[833][631][3616]2 Make sure no other security product is active. 3 Pause heavy background tasks like large downloads and 1[833][631][3616]backups. 4 Retry, or use the clean boot method below. Zone 5: Frozen at 0.95 to 1 1[833][631][3616]1 Wait ten minutes, since the final stage can be slow. 2 Restart the PC and check 1[833][631][3616]whether Avast has installed anyway. 3 If it hasn't, run Avast's official uninstall utility, restart and install again. 1[833][631][3616]The Clean Boot Method 1 Press Windows key + R, type msconfig and press Enter. 2 1[833][631][3616]On the Services tab, tick Hide all Microsoft services, then Disable all. 3 Restart and run the Avast 1[833][631][3616]installer. 4 Afterwards, undo the change and restart. Using the Avast Uninstall Utility 1 Download Avast's 1[833][631][3616]official uninstall utility from the Avast support site. 2 Restart in Safe Mode if the tool recommends it. 1[833][631][3616]3 Run the tool, select the product and remove it. 4 Restart normally. 5 Install the fresh copy. 1[833][631][3616]When It Freezes at the Same Percentage Twice A repeating freeze point means the same blocker 1[833][631][3616]is hitting again. Don't retry blindly. Note the zone, apply the fix, and if the freeze repeats, move 1[833][631][3616]to the clean boot. After It Installs Open Avast and sign in or activate Let it 1[833][631][3616]update definitions Run a quick scan Check that Windows Security lists Avast as the active protection Quick 1[833][631][3616]Answers How long should Avast setup take? Often a few minutes. Ten minutes with no movement is 1[833][631][3616]a sign to restart. Is it okay to switch off the PC mid-install? Close the installer, then 1[833][631][3616]restart normally. Avoid cutting the power. Do I lose my licence if the install fails? No. The 1[833][631][3616]licence belongs to your account. Scam warning: pop-ups or pages telling you to call a number to 1[833][631][3616]fix an Avast freeze are scams. Only download Avast from the official site. Read the Bar, Apply 1[833][631][3616]the Fix Note where it froze, use that zone's fix and restart if needed. A frozen bar 1[833][631][3616]is usually fixed in one or two tries.