Danke für die Mühe.
Nach herunterfahren und ca. 20 Sekunden ohne AKku und neu hoch fahren war das Problem wieder weg. Hab trotzdem mal Malwarebytes drüber laufen lassen.
Malwarebytes Anti-Malware
www.malwarebytes.org
Scan Date: 22.02.2015
Scan Time: 00:14:56
Logfile: A.txt
Administrator: Yes
Version: 2.00.4.1028
Malware Database: v2015.02.21.10
Rootkit Database: v2015.02.20.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled
OS: Windows 8.1
CPU: x64
File System: NTFS
User: Chris
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 417438
Time Elapsed: 39 min, 8 sec
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled
Processes: 0
(No malicious items detected)
Modules: 0
(No malicious items detected)
Registry Keys: 0
(No malicious items detected)
Registry Values: 0
(No malicious items detected)
Registry Data: 0
(No malicious items detected)
Folders: 0
(No malicious items detected)
Files: 6
PUP.Optional.Downloader, C:\Users\Chris\Downloads\OpenOffice - CHIP-Installer.exe, , [75a951d0503a2a0c5e3def7cbd43e11f],
PUP.Optional.DownloadSponsor, C:\Users\Chris\Downloads\Room Arranger - CHIP-Installer (1).exe, , [fd21a67b9eec43f3351291929b67c43c],
PUP.Optional.DownloadSponsor, C:\Users\Chris\Downloads\Room Arranger - CHIP-Installer.exe, , [fc22dd44b7d359ddd17648db748e8f71],
PUP.Optional.DownloadSponsor, C:\Users\Chris\Downloads\Sweet Home 3D - CHIP-Installer (1).exe, , [c15de23f4f3b82b471d6ef3462a00df3],
PUP.Optional.DownloadSponsor, C:\Users\Chris\Downloads\Sweet Home 3D - CHIP-Installer (2).exe, , [43db10119bef76c0272029fa14ee34cc],
PUP.Optional.DownloadSponsor, C:\Users\Chris\Downloads\Sweet Home 3D - CHIP-Installer.exe, , [001e5fc24c3e2d0902457fa43ac89d63],
Physical Sectors: 0
(No malicious items detected)
(end)