how to repair windows 7 system files without cd

How can I repair Windows 7 Professional without a disc?

1. Try Repairing The Windows 7 Installation.
2. 1a. ...
3. 1b. ...
4. Choose your language and click Next.
5. Click Repair Your Computer and then select the operating system you want to repair.
6. Click on the Startup Repair link from list of recovery tools in System Recovery Options.
7. More info and a how to guide:
8. If that doesn't fix it:

1. How can I repair Windows 7 without CD?
2. How do I repair Windows 7 system files?
3. How do I repair Windows 7 without reinstalling?
4. Is there a Windows 7 repair tool?
5. How do I fix a crashed Windows 7?
6. What do you do if you don't have a boot disk?
7. How do I fix Windows startup problem?
8. How do I fix Windows error recovery without CD?
9. What to do if Windows 7 is not starting?
10. How do I find corrupt files on Windows 7?
11. How do you check if Windows is corrupted?

How can I repair Windows 7 without CD?

Restore without installation CD/DVD

1. Turn on the computer.
2. Press and hold the F8 key.
3. At the Advanced Boot Options screen, choose Safe Mode with Command Prompt.
4. Press Enter.
5. Log in as Administrator.
6. When Command Prompt appears, type this command: rstrui.exe.
7. Press Enter.

How do I repair Windows 7 system files?

Using System File Checker in Windows 7 and Windows Vista

1. Click Start . In the Search box, type Command Prompt.
2. Right-click Command Prompt, and then click Run as administrator. Figure : Opening Command Prompt. ...
3. In the Command Prompt window, type the following command and then press Enter: sfc /scannow.

How do I repair Windows 7 without reinstalling?

This article will introduce you how to repair Windows 7 without losing data with 6 ways.

1. Safe mode and Last Known Good Configuration. ...
2. Run Startup Repair. ...
3. Run System Restore. ...
4. Use the System File Checker tool to repair system files. ...
5. Use Bootrec.exe repair tool for boot problems. ...
6. Create a bootable rescue media.

Is there a Windows 7 repair tool?

Startup Repair is an easy diagnostic and repair tool to use when Windows 7 fails to start properly and you can't use Safe Mode. ... The Windows 7 repair tool is available from the Windows 7 DVD, so you must have a physical copy of the operating system in order for this to work.

How do I fix a crashed Windows 7?

Check for hard disk issues:

1. Click Start.
2. Go to Computer.
3. Right-click on the main drive, where Windows 7 is installed on, and click Properties.
4. Click the Tools tab and at the Error-checking section click Check now.
5. Select both Automatically fix file system errors and Scan for and attempt recovery of bad sectors.
6. Click Start.

What do you do if you don't have a boot disk?

If you don't have the installation disk, but your system has the system recovery options pre-installed, follow these steps:

1. Remove all CDs, DVDs and USB flash drives from your computer.
2. Restart the computer.
3. Press and hold the F8 key as your computer boots. ...
4. Select Repair your computer, at the Advanced Boot Options screen.

How do I fix Windows startup problem?

You can access Startup Repair by clicking Troubleshoot > Advanced Options > Startup Repair on this menu. Windows will ask you for your password and attempt to automatically repair your PC. On Windows 7, you'll often see the Windows Error Recovery screen if Windows can't boot properly.

How do I fix Windows error recovery without CD?

You can fix Windows Error Recovery errors using these methods:

1. Remove recently added hardware.
2. Run Windows Start Repair.
3. Boot into LKGC (Last Known Good Configuration)
4. Restore Your HP Laptop with System Restore.
5. Recover the Laptop.
6. Perform Startup Repair with a Windows installation disc.
7. Reinstall Windows.

What to do if Windows 7 is not starting?

Since you can't start Windows, you can run System Restore from Safe Mode:

1. Start the PC and press the F8 key repeatedly until the Advanced Boot Options menu appears. ...
2. Select Safe Mode with Command Prompt.
3. Press Enter.
4. Type: rstrui.exe.
5. Press Enter.
6. Follow the wizard instructions to choose a restore point.

How do I find corrupt files on Windows 7?

Running SFC scannow on Windows 10, 8, and 7

Enter the command sfc /scannow and press Enter. Wait until the scan is 100% complete, making sure not to close the Command Prompt window before then. The results of the scan will depend on whether or not the SFC finds any corrupted files.

How do you check if Windows is corrupted?

1. From the desktop, press the Win+X hotkey combination and from the menu select Command Prompt (Admin). ...
2. Click Yes on the User Account Control (UAC) prompt that appears, and once the blinking cursor appears, type: SFC /scannow and press the Enter key.
3. System File Checker starts and checks the integrity of system files.