Ciao, mi ritrovo in un bel guaio. Ieri ho aggiornato il pc a Windows 8.1 ed è sparito il mio avast. Il pc non mi permetteva di reinstallarlo e allora ho cancellato i dati manualmente. Ma adesso mi trovo nella condizione di non avere l'antivirus ma non poter neanche re-installarlo. Ho provato a scaricare la mia versione (Internet security) ma il computer mi ripete che èl'installazione di avast non può continuare perchè è stata eseguita già un operazione su avast senza il riavvio. Cosa assolutamente non vera. Allego il log del problema sperando che possiate aiutarmi, grazie mille

14:58:53Infoinstcont[2472,3748]--
14:58:53Infoinstcont[2472,3748]2013/10/23 14:58:53 START: Avast installer/updater
14:58:53Infoinstup[2472,3748]Command: '"C:\Users\GAETAN~1\AppData\Local\Temp\_av_iup.tm~a04004\instup.exe" /sfx /sfxstorage:"C:\Users\GAETAN~1\AppData\Local\Temp\_av_iup.tm~a04004" /edition:3 /prod:ais '
14:58:53Infoinstup[2472,3748]CPU: AMD A4-4300M APU with Radeon(tm) HD Graphics ,2
14:58:53Infoinstup[2472,3748]OS: ver 6.3, build 9600, sp 0.0 x64
14:58:53Infoinstup[2472,3748]Memory: 22% load. Phys:4194303/4194303K free, Page:4194303/4194303K free, Virt:2011588/2097024K free
14:58:53Infoinstup[2472,3748]Running module version: '9.0.2006.159'
14:58:53Errorregistry[2472,3748]Cannot create registry key: Software\AVAST Software\Avast, code 5 (0x00000005) []
14:58:53Infoinstup[2472,3748]Loading Proxy settings
14:58:53Infoinstup[2472,3748]Proxy-Type: 'no proxy'
14:58:53Infoinstup[2472,3748]Proxy-Authorization: 'no authentication'
14:58:53Infoinstup[2472,3748]Proxy-Port: '8080'
14:58:53Infoinstup[2472,3748]Proxy-Name: ''
14:58:53Infoinstup[2472,3748]Proxy-User: ''
14:58:53Infoinstup[2472,3748]Proxy-Pass: '

'
14:58:53Infosimutex[2472,3748]Checking for the mutex ownership.
14:58:53Infoservers[2472,3748]Server definition(s) loaded for 'C:\Users\GAETAN~1\AppData\Local\Temp\_av_iup.tm~a04004\servers.def': 113 (maintenance:0)
14:58:53Infopkgproduct[2472,3748]LoadPartInfo: program = prg_ais-7d6 returned 0x00000000
14:58:53Infopkgproduct[2472,3748]LoadPartInfo: setup = setup_ais-7d6 returned 0x00000000
14:58:53Infopkgengine[2472,3748]LoadLatestProdAndParts: product file 'prod-ais.vpx' was successfully loaded.
14:58:53Infopkgengine[2472,3748]LoadLatestProdAndParts: part file part-prg_ais-7d6.vpx was successfully loaded.
14:58:53Infopkgengine[2472,3748]LoadLatestProdAndParts: part file part-setup_ais-7d6.vpx was successfully loaded.
14:58:53Infopkgproduct[2472,3748]LoadPartInfo: jrog2 = jrog2-88c returned 0x00000000
14:58:53Infopkgproduct[2472,3748]LoadPartInfo: vps = vps_win32-13101600 returned 0x00000000
14:58:53Infopkgengine[2472,3748]LoadLatestProdAndParts: product file 'prod-vps.vpx' was successfully loaded.
14:58:53Infopkgengine[2472,3748]LoadLatestProdAndParts: part file part-vps_win32-13101600.vpx was successfully loaded.
14:58:53Infopkgengine[2472,3748]LoadLatestProdAndParts: part file part-jrog2-88c.vpx was successfully loaded.
14:58:54Infoinstupcore[2472,3748]PkgLoadProductInfo: product GPB was successfully loaded.
14:58:54Infosimutex[2472,3748]Checking for the mutex ownership.
14:58:54Infofilehlp[2472,3748]OpOnReboot: Direct delete of file 'C:\Users\GAETAN~1\AppData\Local\Temp\aswSetupOffers.def' successfully performed.
14:58:54Infoguiwizard[2472,3748]Setup gui was successfully started.