Unknown account appears in windows 7

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Axematic

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Hello everyone. I have some question(or maybe a problem) and it's about accounts on my windows.
Some unknown account appeared on my windows with some strange name! So i would like to know is it normal, or is there something wrong like a hack or a consequence of an virus attack!!
Do i need to reinstall my windows!??
Take a look at the picture!
 

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My Computer

OS
Windows 7 Ultimate x86 build 7100
CPU
CPU INTEL Core i7 920 BOX, s. 1366, 2.66GHz, 8MB c., FSB 133
Motherboard
MBO ASUS RAMPAGE II EXTREME, Intel X58/ICH10R, DDR3, zvuk, 2
Memory
RAM PC-10600, 6 GB, CORSAIR TR3X6G1333C9, DDR3 1333MHz, KIT
Graphics Card(s)
VGA PCI-E XFX GeForce GTX 295, 1792 MB DDR3, DualDVI, HDMI,
Hard Drives
HDD 750.0 GB WESTERN DIGITAL, Caviar Green7500AACS, SATA, 16MB cache, 7200

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Airbot 2.0
OS
Windows 7 Ultimate x64 SP1
CPU
Core i7 920 (D0) @ 4Ghz, *26c idle *65c full load on air
Motherboard
Asus P6X58D Premium - Sata 6Gb/s - USB 3.0
Memory
12GB DDR3 Corsair Dominator -CMD12GX3M6A1600C8 at 1600MHz
Graphics Card(s)
Zotac Geforce GTX 770
Sound Card
ASUS Xonar D2X
Monitor(s) Displays
1 LG 24" Flatron W2453V-PF 1 Samsung 24" P2450H both 2ms RT
Screen Resolution
1920x1080@60hz
Hard Drives
1 Samsung 250GB 840 Evo SSD
1 OCZ Vertex2 180GB SSD
1 TB Samsung Spinpoint F1 7200RPM 32MB cache
2 500GB WD Caviar Blacks 7200RPM 32MB cache (WD5001AALS)

Pioneer DVD Burner DVR-S18M
PSU
Corsair HX1000W
Case
Cooler Master HAF 932
Cooling
Case Fans *3 230mm, *1 140mm/CPU - *Tuniq Tower 120 Extreme
Keyboard
Logitech Wireless MK700
Mouse
Logitech Wireless MK700
Internet Speed
DL 15 Mbps UL 0.98 Mbps
Antivirus
None
Browser
Firefox Nightly
Other Info
Processor-7.7 *RAM- 7.9 *Graphics-7.9 *Gaming Graphics- 7.9 *SSD- 7.8 W.E.I final score= 7.7
*Phone- LG Nexus 5
thanks guys for answers!!
Yes im running build 7068 now. And it worked perfect.
And i noticed this problem today i was surprised.

OK i will download and install the last one from MS sites tomorrow.
But im asking could some antivirus program help with that!?
Im using ESET Smart security now!!:huh:
 

My Computer

OS
Windows 7 Ultimate x86 build 7100
CPU
CPU INTEL Core i7 920 BOX, s. 1366, 2.66GHz, 8MB c., FSB 133
Motherboard
MBO ASUS RAMPAGE II EXTREME, Intel X58/ICH10R, DDR3, zvuk, 2
Memory
RAM PC-10600, 6 GB, CORSAIR TR3X6G1333C9, DDR3 1333MHz, KIT
Graphics Card(s)
VGA PCI-E XFX GeForce GTX 295, 1792 MB DDR3, DualDVI, HDMI,
Hard Drives
HDD 750.0 GB WESTERN DIGITAL, Caviar Green7500AACS, SATA, 16MB cache, 7200
An account like that in the permissions is NOT a real indication of an issue. Those are actually normal to see. Still follow Airbot's recommendation to install the latest 7100 RC (as a clean install).
 

My Computer

Computer Manufacturer/Model Number
Dell Inspiron 1525 Notebook
OS
Windows 7
CPU
rocessor Intel(R) Pentium(R) Dual CPU T2390 @ 1.86GHz, 1867
Motherboard
Intel(R) ICH8 Family Chipset
Memory
Installed Physical Memory (RAM) 4 GB
Graphics Card(s)
Mobile Intel(R) 965 Express Chipset Family (Sux)
Sound Card
Intel(R) High Definition Audio HDMI
Ok! Thanks for advices. Im downloading and installing RC as soon as possible.

But this time im going to download and install a x64 bit version because i have 6GB of RAM. ;)
 

My Computer

OS
Windows 7 Ultimate x86 build 7100
CPU
CPU INTEL Core i7 920 BOX, s. 1366, 2.66GHz, 8MB c., FSB 133
Motherboard
MBO ASUS RAMPAGE II EXTREME, Intel X58/ICH10R, DDR3, zvuk, 2
Memory
RAM PC-10600, 6 GB, CORSAIR TR3X6G1333C9, DDR3 1333MHz, KIT
Graphics Card(s)
VGA PCI-E XFX GeForce GTX 295, 1792 MB DDR3, DualDVI, HDMI,
Hard Drives
HDD 750.0 GB WESTERN DIGITAL, Caviar Green7500AACS, SATA, 16MB cache, 7200
Axematic said:
Ok! Thanks for advices. Im downloading and installing RC as soon as possible.

But this time im going to download and install a x64 bit version because i have 6GB of RAM. ;)
Click to expand...


There you go, now you're talkin!
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Airbot 2.0
OS
Windows 7 Ultimate x64 SP1
CPU
Core i7 920 (D0) @ 4Ghz, *26c idle *65c full load on air
Motherboard
Asus P6X58D Premium - Sata 6Gb/s - USB 3.0
Memory
12GB DDR3 Corsair Dominator -CMD12GX3M6A1600C8 at 1600MHz
Graphics Card(s)
Zotac Geforce GTX 770
Sound Card
ASUS Xonar D2X
Monitor(s) Displays
1 LG 24" Flatron W2453V-PF 1 Samsung 24" P2450H both 2ms RT
Screen Resolution
1920x1080@60hz
Hard Drives
1 Samsung 250GB 840 Evo SSD
1 OCZ Vertex2 180GB SSD
1 TB Samsung Spinpoint F1 7200RPM 32MB cache
2 500GB WD Caviar Blacks 7200RPM 32MB cache (WD5001AALS)

Pioneer DVD Burner DVR-S18M
PSU
Corsair HX1000W
Case
Cooler Master HAF 932
Cooling
Case Fans *3 230mm, *1 140mm/CPU - *Tuniq Tower 120 Extreme
Keyboard
Logitech Wireless MK700
Mouse
Logitech Wireless MK700
Internet Speed
DL 15 Mbps UL 0.98 Mbps
Antivirus
None
Browser
Firefox Nightly
Other Info
Processor-7.7 *RAM- 7.9 *Graphics-7.9 *Gaming Graphics- 7.9 *SSD- 7.8 W.E.I final score= 7.7
*Phone- LG Nexus 5
Axematic said:
Hello everyone. I have some question(or maybe a problem) and it's about accounts on my windows.
Some unknown account appeared on my windows with some strange name! So i would like to know is it normal, or is there something wrong like a hack or a consequence of an virus attack!!
Do i need to reinstall my windows!??
Take a look at the picture!
Click to expand...

You will find such unknown accounts in every file and folder on your PC and sometimes more of them! It is creator account from second OS on your PC ,you can even delete it ,but then you can have problems opening that files or folders in your second OS. If you only have Seven ,feel free to remove it!
 

My Computer

OS
Windows 7 x64
CPU
i7 860
Motherboard
ASUS P7P55D-E
Memory
Corsair CMX8GX3M2A1600C9 ,DDR3 ,8 GB
Graphics Card(s)
Sapphire ATI Radeon HD 5770 ,1 GB
Monitor(s) Displays
Dell U2311H
Hard Drives
WD Caviar Black x1
WD Caviar Blue x2
Intel Series 530 120 GB X2
PSU
Corsair CMPSU-750TX
Keyboard
Logitech S510
Mouse
Logitech LX5
Hi. I had the same problem, but not anymore :)

To remove this account from security do this:

Right click on the folder-> Properties-> Security -> Advanced -> Owner -> Edit -> Mark the username that you want to be the owner (your username) then tick the box "replace owner ...." -> Apply, OK.

Then you are the owner and you're abble to change the permissions and delete the Account Unkown S-1-5-21.....

Greetings and I'm waiting for answer...
 

My Computer

OS
Windows 7
Status
Not open for further replies.

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