Enhanced/Dual Powered
Willem EPROM Programmer
User Guide
Main Board / Cables
Main Board PCB3.5

Main Board PCB4E

Main Board PCB5.0

Main Board PCB5.5C

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Parallel Data Cable (Printer extension cable, with male-female 25 pin connector, and pin to pin through) |
A-A type USB cable(for power) |
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Optional Items:
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ATMEL 89 Adapter |
ATMEL PLCC 44 Adapter |
TSOP 48 Adapter |
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FWH/HUB PLCC32Adapter |
PLCC32 Adapter |
SOIC Adapter(Simplified) |
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On-Board |
On-Board |
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AC or DC Power Adapter (9V or 12V, 200mA) |
SOIC Adapter(Professional) |
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CCleaner on Windows 11 is a solution in search of a problem. Modern Windows takes care of itself. If you’re experiencing slowdowns on Windows 11, look elsewhere—bloated browser extensions, too many startup apps, or failing hardware are far more likely culprits than “crap files.” Word count: ~750 Final advice: Trust Windows 11’s built-in tools. Your system will stay cleaner, safer, and just as fast.
For nearly two decades, CCleaner has been a go-to utility for Windows users looking to sweep away digital clutter. But with the arrival of Windows 11—a modern, streamlined operating system packed with its own maintenance tools—the question arises: Is CCleaner still a helpful companion, or has it become an unnecessary risk? ccleaner windows 11
| Feature | CCleaner | Windows 11 Native | | --- | --- | --- | | Temporary file cleanup | Yes | (automatic) + Disk Cleanup | | Registry cleaning | Yes | None (Microsoft advises against it) | | Startup management | Yes | Task Manager > Startup tab | | Browser data cleanup | Yes | Built into Edge/Chrome settings | | Large file detection | Yes | Storage Sense > “Other” & “Temporary files” | CCleaner on Windows 11 is a solution in search of a problem
Use it cautiously. Turn off automatic registry cleaning, disable real-time monitoring, and only run manual scans for temporary files. Even then, you might find open-source alternatives like BleachBit (which has no registry cleaner) a safer choice. Your system will stay cleaner, safer, and just as fast
Hardware Installation & Configuration
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Installation Steps
(Note: the LPT port of PC MUST set to ECP or ECP+EPP during BIOS setup. To enter the BIOS setting mode, you need press "Del" key or "F1" key during the computer selftest, which is the moment of computer just power up.)
Software Version To Use | |||
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The software interface:
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Hardware
Check
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PCB3.5/PCB4E
PCB5.0
PCB5.5C
Note: the Vcc setting jumper only has effect when you are using AC adaptor as power source. For the USB power only 5V Vcc is available. For the PCB5.5C, set DIP steps: 1. press DIP Set button twice to check current DIP bit position. Then set it again for ON or OFF. 2. press DIP Bit shift button to shift the DIP bit position to where need to set. And then press DIP Set button twice to check current DIP bit position. Then set it again for ON or OFF. 3. Repeat those steps till all DIP bit ae set same as software indicated. For PCB5.5C voltage and Special chip selection: 1. Put back the safety jumper. 2. Press the voltage button and hold for 1 second, the voltage LED should move to next. Repeat till desired voltage LED light up. 3. Press the chip selection button and hold for 1 second, the chip LED should move to next. Repeat till desired LED light up. 4. Remove the safety jumper to lock the selected voltage and chip selection
DIP Switch (PCB3.5, PCB5.0)
When programming one chip, follow the program prompt to set DIP switch .
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CCleaner on Windows 11 is a solution in search of a problem. Modern Windows takes care of itself. If you’re experiencing slowdowns on Windows 11, look elsewhere—bloated browser extensions, too many startup apps, or failing hardware are far more likely culprits than “crap files.” Word count: ~750 Final advice: Trust Windows 11’s built-in tools. Your system will stay cleaner, safer, and just as fast.
For nearly two decades, CCleaner has been a go-to utility for Windows users looking to sweep away digital clutter. But with the arrival of Windows 11—a modern, streamlined operating system packed with its own maintenance tools—the question arises: Is CCleaner still a helpful companion, or has it become an unnecessary risk?
| Feature | CCleaner | Windows 11 Native | | --- | --- | --- | | Temporary file cleanup | Yes | (automatic) + Disk Cleanup | | Registry cleaning | Yes | None (Microsoft advises against it) | | Startup management | Yes | Task Manager > Startup tab | | Browser data cleanup | Yes | Built into Edge/Chrome settings | | Large file detection | Yes | Storage Sense > “Other” & “Temporary files” |
Use it cautiously. Turn off automatic registry cleaning, disable real-time monitoring, and only run manual scans for temporary files. Even then, you might find open-source alternatives like BleachBit (which has no registry cleaner) a safer choice.