414
votes
19answers
291k views

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?

What should I do if my Windows computer seems to be infected with a virus or malware?What are the symptoms of an infection?What should I do after noticing an infection?What can I do to get rid of ...
189
votes
5answers
283k views

Where can I download Windows 7 (legally from Microsoft)?

I just bought a serial for Windows 7 on-line from the Microsoft store (the most painful shopping experience EVER!). I selected that I wanted to download my version of Windows 7 after purchase. After ...
111
votes
1answer
14k views

Windows Activation FAQ: How do language, version, 64-bit or 32-bit, and source affect ability to install and transfer Windows licenses?

We get a lot of questions on Super User about Windows activation and licensing. This question is an attempt to answer the most common questions in one place with a canonical answer.When reinstalling ...
155
votes
15answers
269k views

What can I do if I forgot my Windows password?

I got a brand new Windows 7 machine, installed the operating system, created one account and forgot its password. What can I do?There is no external CD, the operating system is loaded from somewhere ...
40
votes
4answers
8k views

How do I recover lost/inaccessible data from my storage device?

What steps can I take to try to recover lost or inaccessible data from any storage device?Answers:This applies to any computer storage device, e.g. internal/external hard drives, USB sticks, flash ...
272
votes
21answers
143k views

How can I visualize the file system usage on Windows?

How can I visualize which folders and files are taking up all of the space on my hard drive?I'm getting some conflicting reports on the size of hard drive contents. Namely what is and isn't there ...
294
votes
4answers
448k views

What are PATH and other environment variables, and how can I set or use them?

Questions about setting environment variablesthe PATHare very common here, and in most cases the answers are very similar to each other. In the future it would be nice to have a good Q/A for this....
20
votes
3answers
9k views

What can I do if my USB flash drive is write-protected or read-only?

When I plug in my USB flash drive, it shows up on my computer as write-protected or read-only. I am unable to transfer data to it, nor can I modify or delete any files already stored on it. I also ...
531
votes
13answers
3.1m views

Windows 7 SP1 Windows Update stuck checking for updates

I installed Windows 7 fresh and installed SP1. Now, when I try to check manually for Windows Updates it just hangs on the Checking for updates screen.I tried running the tools in How do I reset ...
24
votes
4answers
135k views

USB flash drive not working or is appearing as an empty disk drive, Disk Management reports “No Media” with 0 bytes size

I have a USB flash drive which is no longer recognized by my computer. Windows Disk Management and DiskPart report No Media with no storage space (0 bytes) on the drive and I cannot partition or ...
87
votes
9answers
29k views

Why does Windows only show about 3.5 GB of my 4 GB of RAM?

I recently upgraded my computer's RAM to 4 GB. My 32-bit Windows installation shows only 3574 MB of the memory. How can I make Windows use the full amount of RAM?
16
votes
3answers
6k views

How to get rights of admin after I disabled all admin accounts in my computer

I accidentally disabled my admin account.After I login to another account I found I can not get admin rights, because all admin accounts on my computer are disabled.I clicked on 'run as ...
17
votes
2answers
8k views

How do I add VBA in MS Office?

I've seen posts showing answers which use VBA (Visual Basic for Applications) code/macros, however, I've also noted additional comments afterwards about how to use the VBA (how to implement and ...
144
votes
15answers
362k views

How can I read my hard drive’s SMART status in Windows 7?

How can I read the S.M.A.R.T. state of my HDDs while using Windows 7, either automatically or manually?
214
votes
19answers
46k views

32-bit vs. 64-bit systems

What are the differences between 32-bit and 64-bit systems?If you have used both of them, what kind of sharp differences have you experienced? Would it be a problem to use 32-bit programs on 64-...

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