"Il y a eu une erreur lors du processus d'installation"

Bonjour,
je viens d’avoir un ordinateur Windows 10, et je souhaite installer un nouvel antivirus.
J’ai désinstallé McAfee (puis nettoyer avec http://us.mcafee.com/apps/supporttools/mcpr/mcpr.asp) et désactivé Windows Defender avant d’installer Avast.
Malheureusement l’installation n’aboutit pas, me laissant le message suivant:

“Il y a eu une erreur lors du processus d’installation”

Que dois faire pour pouvoir l’installer?

Merci d’avance pour vos réponses

2018-03-08 20:11:23Infoinstcont[7628,6368]–
2018-03-08 20:11:23Infoinstcont[7628,6368]2018/03/08 20:11:23 START: Avast installer/updater
2018-03-08 20:11:23Infoinstup[7628,6368]Command: ‘“C:\Users\ARTHUR\AppData\Local\Temp_av_iup.tm~a08884\instup.exe” /edition:1 /ga_clientid:067bd6ab-d96f-4067-ab61-e74906aa19a1 /guid:04c72f7d-3072-45ac-9d8c-9b404244f9d4 /prod:ais /sfx:lite /sfxstorage:C:\Users\ARTHUR\AppData\Local\Temp_av_iup.tm~a08884’
2018-03-08 20:11:23Infoinstup[7628,6368]CPU: AMD A8-7410 APU with AMD Radeon R5 Graphics ,4
2018-03-08 20:11:23Infoinstup[7628,6368]OS: Windows 10 (10.0.16299) x64
2018-03-08 20:11:23Infoinstup[7628,6368]Memory: 62% load. Phys:1349880/3621900K free, Page:1946784/4194303K free, Virt:3978640/4194176K free
2018-03-08 20:11:23Infoinstup[7628,6368]DISKs: C:\ - 850GB free / 918GB total
2018-03-08 20:11:23Infoinstup[7628,6368]DISKs: D:\ - 1GB free / 11GB total
2018-03-08 20:11:23Infoinstup[7628,6368]Running module version: instup.exe - ‘12.3.3154.0’
2018-03-08 20:11:23Infoinstup[7628,6368]Running module version: Instup.dll - ‘12.3.3154.0’
2018-03-08 20:11:23Infoinstupmutex[7628,6368]The ownership of the fallback mutex has been successfully taken.
2018-03-08 20:11:23Infoguiwizard[7628,6368]Running module version: HTMLayout.dll - ‘3.3.2.19’
2018-03-08 20:11:23Infoguiwizard[7628,6368]Loaded module version: C:\Users\ARTHUR\AppData\Local\Temp_av_iup.tm~a08884\HTMLayout.dll - ‘3.3.2.19’
2018-03-08 20:11:23Infoguiwizard[7628,6368]Setup gui was successfully started.
2018-03-08 20:11:23Infoinstupcore[7628,6368]Sfx setup update has started.
2018-03-08 20:11:23Infoservers[7628,6368]Server definition(s) loaded for ‘C:\Users\ARTHUR\AppData\Local\Temp_av_iup.tm~a08884\servers.def’: 29 (maintenance:0)
2018-03-08 20:11:23Infoservers[7628,6368]ChooseServer: selected server ‘Download c9927198 AVAST9 Server’ with current url ‘http://c9927198.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:11:24Infodldwrap[7628,6368]HttpGet: ‘servers.def.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 2903 bytes).
2018-03-08 20:11:24Infodldwrap[7628,6368]HttpGet: ‘servers.def.vpx’ was successfully verified.
2018-03-08 20:11:24Infoservers[7628,6368]ChooseServer: selected server ‘Download r3148381 AVAST9 Server’ with current url ‘http://r3148381.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:11:25Infodldwrap[7628,6368]HttpGet: ‘prod-pgm.vpx’ was successfully downloaded (ip: 92.123.226.120, size: 445 bytes).
2018-03-08 20:11:25Infodldwrap[7628,6368]HttpGet: ‘prod-pgm.vpx’ was successfully verified.
2018-03-08 20:11:25Infopkgproduct[7628,6368]LoadPartInfo: program = prg_ais-12020918 returned 0x00000000
2018-03-08 20:11:25Infopkgproduct[7628,6368]LoadPartInfo: setup = setup_ais-12020918 returned 0x00000000
2018-03-08 20:11:25Infopkgproduct[7628,6368]LoadUatInfo: uat.vpx returned 0x00000000
2018-03-08 20:11:25Infopkgengine[7628,6368]LoadLatestProdAndParts: product file ‘prod-pgm.vpx’ was successfully loaded.
2018-03-08 20:11:25Infoservers[7628,6368]ChooseServer: selected server ‘Download g9355591 AVAST9 Server’ with current url ‘http://g9355591.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:11:25Infodldwrap[7628,6368]HttpGet: ‘uat.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 1629 bytes).
2018-03-08 20:11:25Infodldwrap[7628,6368]HttpGet: ‘uat.vpx’ was successfully verified.
2018-03-08 20:11:25Infopkguat[7628,6368]UpdateLatestPartInfo: called, repo_id: ‘iavs9x’, part_id: program, installed_ver: ffffffff, latest_ver: 12020918
2018-03-08 20:11:25Infoservers[7628,6368]ChooseServer: selected server ‘Download c9927198 AVAST9 Server’ with current url ‘http://c9927198.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:11:26Infodldwrap[7628,6368]HttpGet: ‘part-prg_ais-12020918.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 15798 bytes).
2018-03-08 20:11:26Infodldwrap[7628,6368]HttpGet: ‘part-prg_ais-12020918.vpx’ was successfully verified.
2018-03-08 20:11:26Infopkgengine[7628,6368]LoadLatestProdAndParts: part file part-prg_ais-12020918.vpx was successfully loaded.
2018-03-08 20:11:26Infopkguat[7628,6368]UpdateLatestPartInfo: called, repo_id: ‘iavs9x’, part_id: setup, installed_ver: ffffffff, latest_ver: 12020918
2018-03-08 20:11:26Infoservers[7628,6368]ChooseServer: selected server ‘Download j5965768 AVAST9 Server’ with current url ‘http://j5965768.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:11:28Infodldwrap[7628,6368]HttpGet: ‘part-setup_ais-12020918.vpx’ was successfully downloaded (ip: 92.123.226.120, size: 100751 bytes).
2018-03-08 20:11:28Infodldwrap[7628,6368]HttpGet: ‘part-setup_ais-12020918.vpx’ was successfully verified.
2018-03-08 20:11:28Infopkgengine[7628,6368]LoadLatestProdAndParts: part file part-setup_ais-12020918.vpx was successfully loaded.
2018-03-08 20:11:28Infoservers[7628,6368]ChooseServer: selected server ‘Download h7993849 AVAST9 Server’ with current url ‘http://h7993849.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2018-03-08 20:11:28Infodldwrap[7628,6368]HttpGet: ‘prod-vps.vpx’ was successfully downloaded (ip: 92.123.226.97, size: 428 bytes).
2018-03-08 20:11:28Infodldwrap[7628,6368]HttpGet: ‘prod-vps.vpx’ was successfully verified.
2018-03-08 20:11:28Infopkgproduct[7628,6368]LoadPartInfo: iex = iex-a returned 0x00000000
2018-03-08 20:11:28Infopkgproduct[7628,6368]LoadPartInfo: jrog2 = jrog2-168c returned 0x00000000
2018-03-08 20:11:28Infopkgproduct[7628,6368]LoadPartInfo: vps = vps_win32-18030812 returned 0x00000000
2018-03-08 20:11:28Infopkgengine[7628,6368]LoadLatestProdAndParts: product file ‘prod-vps.vpx’ was successfully loaded.
2018-03-08 20:11:28Infoservers[7628,6368]ChooseServer: selected server ‘Download c9927198 AVAST9 Server’ with current url ‘http://c9927198.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2018-03-08 20:11:28Infodldwrap[7628,6368]HttpGet: ‘part-iex-a.vpx’ was successfully downloaded (ip: 92.123.226.122, size: 231 bytes).
2018-03-08 20:11:28Infodldwrap[7628,6368]HttpGet: ‘part-iex-a.vpx’ was successfully verified.
2018-03-08 20:11:28Infopkgengine[7628,6368]LoadLatestProdAndParts: part file part-iex-a.vpx was successfully loaded.
2018-03-08 20:11:28Infoservers[7628,6368]ChooseServer: selected server ‘Download t7478525 AVAST9 Server’ with current url ‘http://t7478525.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2018-03-08 20:11:29Infodldwrap[7628,6368]HttpGet: ‘part-jrog2-168c.vpx’ was successfully downloaded (ip: 92.123.226.97, size: 863 bytes).
2018-03-08 20:11:29Infodldwrap[7628,6368]HttpGet: ‘part-jrog2-168c.vpx’ was successfully verified.
2018-03-08 20:11:29Infopkgengine[7628,6368]LoadLatestProdAndParts: part file part-jrog2-168c.vpx was successfully loaded.
2018-03-08 20:11:29Infoservers[7628,6368]ChooseServer: selected server ‘Download t7790561 AVAST9 Server’ with current url ‘http://t7790561.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2018-03-08 20:11:31Infodldwrap[7628,6368]HttpGet: ‘part-vps_win32-18030812.vpx’ was successfully downloaded (ip: 92.123.226.123, size: 4414 bytes).
2018-03-08 20:11:31Infodldwrap[7628,6368]HttpGet: ‘part-vps_win32-18030812.vpx’ was successfully verified.
2018-03-08 20:11:31Infopkgengine[7628,6368]LoadLatestProdAndParts: part file part-vps_win32-18030812.vpx was successfully loaded.
2018-03-08 20:11:31Infoservers[7628,6368]ChooseServer: selected server ‘Download y2049168 AVAST9 Server’ with current url ‘http://y2049168.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:11:31Noticepackageinfo[7628,6368]IsFullOkay: avbugreport_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:11:31Infopackageinfo[7628,6368]SetFullAsMarked: package avbugreport_ais
2018-03-08 20:11:47Infodldwrap[7628,6368]HttpGet: ‘avbugreport_ais-918.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 958169 bytes).
2018-03-08 20:11:47Infodldwrap[7628,6368]HttpGet: ‘avbugreport_ais-918.vpx’ was successfully verified.
2018-03-08 20:11:47Noticepackageinfo[7628,6368]IsFullOkay: avdump_x64_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:11:47Infopackageinfo[7628,6368]SetFullAsMarked: package avdump_x64_ais
2018-03-08 20:11:56Infodldwrap[7628,6368]HttpGet: ‘avdump_x64_ais-918.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 369460 bytes).
2018-03-08 20:11:56Infodldwrap[7628,6368]HttpGet: ‘avdump_x64_ais-918.vpx’ was successfully verified.
2018-03-08 20:11:56Noticepackageinfo[7628,6368]IsFullOkay: avdump_x86_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:11:56Infopackageinfo[7628,6368]SetFullAsMarked: package avdump_x86_ais
2018-03-08 20:12:02Infodldwrap[7628,6368]HttpGet: ‘avdump_x86_ais-918.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 322938 bytes).
2018-03-08 20:12:02Infodldwrap[7628,6368]HttpGet: ‘avdump_x86_ais-918.vpx’ was successfully verified.
2018-03-08 20:12:02Noticepackageinfo[7628,6368]IsFullOkay: instcont_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:12:02Infopackageinfo[7628,6368]SetFullAsMarked: package instcont_ais
2018-03-08 20:12:09Infodldwrap[7628,6368]HttpGet: ‘instcont_ais-918.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 461253 bytes).
2018-03-08 20:12:09Infodldwrap[7628,6368]HttpGet: ‘instcont_ais-918.vpx’ was successfully verified.
2018-03-08 20:12:10Noticepackageinfo[7628,6368]IsFullOkay: instup_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:12:10Infopackageinfo[7628,6368]SetDownloadBits: instup_ais setting 13 diffs to process.
2018-03-08 20:12:10Infopackageinfo[7628,6368]SetFullAsMarked: package instup_ais
2018-03-08 20:12:10Warningpkgengine[7628,6368]UpdateToFull: setting full vpx download because the full package is smaller than all required diffs (4136621 <= 14085382)
2018-03-08 20:14:26Infodldwrap[7628,6368]HttpGet: ‘instup_ais-918.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 4136621 bytes).
2018-03-08 20:14:26Infodldwrap[7628,6368]HttpGet: ‘instup_ais-918.vpx’ was successfully verified.
2018-03-08 20:14:28Noticepackageinfo[7628,6368]IsFullOkay: offertool_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:14:28Infopackageinfo[7628,6368]SetFullAsMarked: package offertool_ais
2018-03-08 20:14:40Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://y2049168.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 1
2018-03-08 20:14:40Infoservers[7628,6368]ChooseServer: selected server ‘Download h7993849 AVAST9 Server’ with current url ‘http://h7993849.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:14:55Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://h7993849.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 2
2018-03-08 20:14:55Infoservers[7628,6368]ChooseServer: selected server ‘Download t7541135 AVAST9 Server’ with current url ‘http://t7541135.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:14:57Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://t7541135.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 3
2018-03-08 20:14:57Infoservers[7628,6368]ChooseServer: selected server ‘Download w9120556 AVAST9 Server’ with current url ‘http://w9120556.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:14:59Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://w9120556.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 4
2018-03-08 20:14:59Infoservers[7628,6368]ChooseServer: selected server ‘Download k7677977 AVAST9 Server’ with current url ‘http://k7677977.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:01Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://k7677977.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 5
2018-03-08 20:15:01Infoservers[7628,6368]ChooseServer: selected server ‘Download k8056924 AVAST9 Server’ with current url ‘http://k8056924.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:03Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://k8056924.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 6
2018-03-08 20:15:03Infoservers[7628,6368]ChooseServer: selected server ‘Download t7790561 AVAST9 Server’ with current url ‘http://t7790561.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:05Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://t7790561.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 7
2018-03-08 20:15:05Infoservers[7628,6368]ChooseServer: selected server ‘Download p9849275 AVAST9 Server’ with current url ‘http://p9849275.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:07Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://p9849275.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 8
2018-03-08 20:15:07Infoservers[7628,6368]ChooseServer: selected server ‘Download v4202226 AVAST9 Server’ with current url ‘http://v4202226.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:09Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://v4202226.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 9
2018-03-08 20:15:09Infoservers[7628,6368]ChooseServer: selected server ‘Download z7781486 AVAST9 Server’ with current url ‘http://z7781486.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:11Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://z7781486.iavs9x.u.avast.com/iavs9x/offertool_ais-918.vpx’. Next try: 10
2018-03-08 20:15:11Infoservers[7628,6368]ChooseServer: selected server ‘Download r4205011 AVAST9 Server’ with current url ‘http://r4205011.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:13Errorpkgengine[7628,6368]UpdateVPXs: package offertool_ais was not updated. Status: 41227 (0x0000A10B) [Downloader system error]
2018-03-08 20:15:13Noticepackageinfo[7628,6368]IsFullOkay: setgui_ais-918.vpx - not okay (doesn’t exist)
2018-03-08 20:15:13Infopackageinfo[7628,6368]SetDownloadBits: setgui_ais setting 13 diffs to process.
2018-03-08 20:15:13Errordldwrap[7628,6368]HttpGet: An error 41227 (0x0000A10B) [Downloader system error] has occured when downloading a file from ‘http://r4205011.iavs9x.u.avast.com/iavs9x/setgui_ais-8ee-8e8.vpx’. Next try: 1
2018-03-08 20:15:13Infoservers[7628,6368]ChooseServer: selected server ‘Download t0530451 AVAST9 Server’ with current url ‘http://t0530451.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2018-03-08 20:15:32Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8ee-8e8.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 432960 bytes).
2018-03-08 20:15:32Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8ee-8e8.vpx’ was successfully verified.
2018-03-08 20:15:33Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f0-8ee.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:33Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f0-8ee.vpx’ was successfully verified.
2018-03-08 20:15:34Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f2-8f0.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:34Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f2-8f0.vpx’ was successfully verified.
2018-03-08 20:15:35Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f3-8f2.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:35Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f3-8f2.vpx’ was successfully verified.
2018-03-08 20:15:36Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f6-8f3.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:36Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8f6-8f3.vpx’ was successfully verified.
2018-03-08 20:15:36Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8fe-8f6.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:36Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8fe-8f6.vpx’ was successfully verified.
2018-03-08 20:15:36Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8ff-8fe.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:36Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-8ff-8fe.vpx’ was successfully verified.
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-906-8ff.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-906-8ff.vpx’ was successfully verified.
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-90a-906.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-90a-906.vpx’ was successfully verified.
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-90e-90a.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-90e-90a.vpx’ was successfully verified.
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-912-90e.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:37Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-912-90e.vpx’ was successfully verified.
2018-03-08 20:15:38Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-916-912.vpx’ was successfully downloaded (ip: 92.123.226.105, size: 259 bytes).
2018-03-08 20:15:38Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-916-912.vpx’ was successfully verified.
2018-03-08 20:15:39Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-918-916.vpx’ was successfully downloaded (ip: 92.123.226.120, size: 259 bytes).
2018-03-08 20:15:39Infodldwrap[7628,6368]HttpGet: ‘setgui_ais-918-916.vpx’ was successfully verified.

Bonsoir,

visiblement , la version que tu tente d’installer est une version “online” qui va télécharger sur les serveurs avast pendant l’installation et parfois ça ne se passe pas très bien.

Je te conseille de prendre une version “offline” que tu peux télécharger sur le 1er sujet du forum intitulé “boite à outils”